Address a year before by council, Census 2021

Usual residents of each of England's and Wales's 318 councils by address a year before, Census 2021, from the ONS Census API (its “Migrant indicator (5 categories)”).

Address one year ago is the same as the address of enumeration, highest: Birmingham

1,007,977

Census Day, 21 March 2021

Verified against source, 30 October 2026, 11:47 UTC

Address a year before by council, Census 2021

Source: Office for National Statistics (Census 2021). Contains public sector information licensed under the Open Government Licence v3.0.

Data table

318 rows

Area	Does not apply	Address one year ago is the same as the address of enumeration	Address one year ago is student term-time or boarding school address in the UK	Migrant from within the UK: Address one year ago was in the UK	Migrant from outside the UK: Address one year ago was outside the UK
Birmingham E08000025	14,272	1,007,977	11,559	97,469	13,642
Leeds E08000035	8,816	689,265	12,684	91,596	9,592
North Yorkshire E06000065	5,019	546,699	1,398	58,665	3,710
Somerset E06000066	5,057	509,616	1,300	51,958	3,617
Cornwall E06000052	4,726	504,540	3,048	55,339	2,652
Bradford E08000032	6,622	495,209	973	39,799	3,809
Buckinghamshire E06000060	5,648	491,751	1,771	50,074	3,836
Sheffield E08000019 its area before 1 April 2025	5,718	477,724	9,793	56,577	6,709
County Durham E06000047	4,623	462,522	5,712	46,551	2,657
Wiltshire E06000054	4,557	451,885	1,357	49,204	3,330
Manchester E08000003	6,581	447,364	12,519	72,814	12,659
Liverpool E08000012	5,014	407,929	10,464	55,467	7,214
Kirklees E08000034	4,759	391,644	1,552	32,473	2,787
Bristol, City of E06000023	5,166	384,986	10,860	64,789	6,664
West Northamptonshire E06000062	4,458	374,988	1,657	40,392	4,227
Cheshire East E06000049	3,648	354,252	874	37,352	2,646
Croydon E09000008	5,085	348,079	977	33,085	3,493
Bournemouth, Christchurch and Poole E06000058	3,678	341,555	3,334	47,821	3,808
Barnet E09000003	4,611	340,971	1,433	36,413	5,916
Dorset E06000059	2,664	339,034	830	35,223	1,828
Wakefield E08000036	3,856	322,086	445	25,627	1,356
North Northamptonshire E06000061	3,714	321,142	631	31,508	2,529
Cheshire West and Chester E06000050	3,280	319,027	1,940	30,596	2,307
Ealing E09000009	4,146	318,949	1,318	36,599	6,103
Leicester E06000016	4,203	316,173	5,526	35,640	7,030
Sandwell E08000028	4,244	312,638	343	21,985	2,622
East Riding of Yorkshire E06000011	2,622	309,075	621	28,723	1,174
Newham E09000025	4,790	300,631	1,070	36,924	7,621
Wigan E08000010	3,356	300,468	360	23,839	1,307
Cardiff W06000015	3,551	298,765	8,319	46,492	5,181
Dudley E08000027	3,463	297,540	420	21,006	1,057
Enfield E09000010	3,721	297,540	673	25,041	3,009
Bromley E09000006	3,657	296,805	815	26,456	2,258
Wirral E08000015	2,978	292,547	570	22,925	1,179
Brent E09000005	3,974	292,263	1,158	36,744	5,676
Coventry E08000026	3,926	292,035	4,739	37,500	7,123
Northumberland E06000057	2,575	291,002	468	25,539	983
Shropshire E06000051	2,656	288,903	757	29,506	1,784
Doncaster E08000017	3,283	278,593	367	24,405	1,456
Redbridge E09000026	4,062	276,586	648	25,016	3,948
Bolton E08000001	3,543	269,720	498	19,935	2,267
Hillingdon E09000017	3,811	268,925	1,777	27,072	4,324
Stockport E08000007	3,183	267,289	535	22,314	1,452
Central Bedfordshire E06000056	3,309	262,318	638	26,095	1,892
Lewisham E09000023	3,842	261,095	1,313	30,875	3,428
Walsall E08000030	3,338	260,529	322	18,539	1,400
Wandsworth E09000032	4,024	259,074	2,317	55,848	6,243
Lambeth E09000022	3,147	257,601	2,284	48,866	5,753
South Gloucestershire E06000025	3,064	256,214	1,642	27,407	2,096
Sefton E08000014	2,452	255,274	411	19,702	1,394
Nottingham E06000018	3,166	254,460	13,344	46,417	6,245
Southwark E09000028	3,230	253,020	2,916	41,633	6,838
Milton Keynes E06000042	3,256	251,495	704	28,441	3,164
Hounslow E09000018	3,532	251,493	696	27,232	5,231
Greenwich E09000011	3,772	251,011	985	29,314	3,986
Sunderland E08000024	2,617	249,207	585	19,957	1,806
Medway E06000035	3,274	249,090	739	24,959	1,711
Cumberland E06000063	2,435	247,140	564	22,032	1,083
Waltham Forest E09000031	3,917	244,815	497	26,569	2,629
Rotherham E08000018	2,756	243,523	270	18,458	800
Tower Hamlets E09000030	3,970	242,588	3,125	50,084	10,536
Newcastle upon Tyne E08000021	2,973	240,278	9,539	42,598	4,737
Wolverhampton E08000031	3,090	237,068	593	20,179	2,797
Havering E09000016	3,096	236,791	414	20,281	1,469
Kingston upon Hull, City of E06000010	3,088	234,760	2,152	25,002	2,012
Harrow E09000015	3,034	231,463	822	22,218	3,666
Stoke-on-Trent E06000021	3,036	231,158	1,273	21,130	1,772
Derby E06000015	2,930	230,959	1,865	23,436	2,173
Plymouth E06000026	2,450	228,569	3,233	28,731	1,712
Salford E08000006	3,543	227,662	2,561	32,266	3,890
Haringey E09000014	3,031	225,526	877	30,884	3,920
Bexley E09000004	2,815	223,929	638	17,709	1,381
Barnsley E08000016 its area before 1 April 2025	2,511	223,187	253	17,815	806
Oldham E08000004	2,980	222,759	277	14,576	1,496
Brighton and Hove E06000043	2,199	222,496	5,784	42,456	4,166
East Suffolk E07000244	1,872	222,085	449	20,825	826
Rhondda Cynon Taf W06000016	2,304	217,430	782	16,211	924
Hackney E09000012	3,391	216,060	1,153	34,476	4,063
Trafford E08000009	2,383	212,379	633	17,528	2,129
Tameside E08000008	2,527	212,108	232	15,205	999
Swansea W06000011	2,012	208,797	3,622	22,292	1,768
Swindon E06000030	2,504	207,187	411	21,058	2,249
Southampton E06000045	2,712	205,697	4,628	30,917	4,965
Westmorland and Furness E06000064	1,741	205,040	435	18,145	1,231
Rochdale E08000005	2,788	204,136	263	15,131	1,455
Luton E06000032	3,133	199,322	446	18,604	3,756
Barking and Dagenham E09000002	3,156	197,250	296	15,985	2,182
Solihull E08000029	2,074	196,307	455	16,248	1,156
North Somerset E06000024	1,942	194,056	508	19,133	1,089
Warrington E06000007	1,946	190,568	428	16,686	1,346
North Tyneside E08000022	1,978	190,192	288	15,707	802
Peterborough E06000031	2,700	190,028	383	20,245	2,316
Sutton E09000029	2,303	188,785	413	16,466	1,672
Calderdale E08000033	2,106	187,491	320	15,936	778
Merton E09000024	2,740	187,420	683	21,384	2,960
Bury E08000002	2,125	177,523	298	12,908	997
Stockton-on-Tees E06000004	1,916	177,449	286	16,088	853
Gateshead E08000037	1,883	177,265	425	15,672	906
Portsmouth E06000044	2,234	172,537	3,639	26,792	2,802
Islington E09000019	2,456	171,898	2,244	34,129	5,860
Carmarthenshire W06000010	1,678	171,250	348	14,021	600
Basildon E07000066	2,250	170,213	268	13,962	878
Richmond upon Thames E09000027	2,023	169,369	921	19,686	3,279
St. Helens E08000013	1,826	167,624	231	12,945	622
Herefordshire, County of E06000019	1,516	167,356	388	16,646	1,128
York E06000014	1,688	166,270	5,847	26,453	2,563
Camden E09000007	2,036	166,134	3,580	30,190	8,196
Colchester E07000071	2,006	165,751	1,986	21,010	1,962
Telford and Wrekin E06000020	1,985	164,089	720	17,563	1,184
Bedford E06000055	2,163	163,567	472	17,351	1,672
Basingstoke and Deane E07000084	1,989	163,495	443	17,616	1,611
Caerphilly W06000018	1,607	163,176	205	10,729	235
Southend-on-Sea E06000033	1,960	161,568	348	15,802	1,008
Chelmsford E07000070	1,805	161,260	557	16,544	1,357
Huntingdonshire E07000011	1,752	160,514	376	16,926	1,264
Westminster E09000033	1,861	159,868	2,168	30,456	9,883
Thurrock E06000034	2,287	158,909	260	13,548	996
New Forest E07000091	1,293	158,810	287	14,658	736
Bath and North East Somerset E06000022	1,769	157,779	4,918	26,137	2,806
West Suffolk E07000245	1,846	156,811	293	16,888	4,110
Wokingham E06000041	1,722	155,971	872	17,081	1,858
Charnwood E07000130	1,664	155,352	3,472	21,576	1,907
Maidstone E07000110	1,930	154,597	354	17,716	1,188
North Lincolnshire E06000013	1,561	153,715	224	13,291	888
Arun E07000224	1,347	147,241	352	15,148	801
Kingston upon Thames E09000021	1,802	145,077	1,492	16,861	2,831
Newport W06000022	1,839	144,997	345	11,350	1,061
Hammersmith and Fulham E09000013	1,883	144,727	2,233	29,333	4,981
South Cambridgeshire E07000012	1,590	144,233	520	14,382	1,392
West Berkshire E06000037	1,509	144,162	518	14,175	1,084
Reading E06000038	1,980	143,154	2,913	22,263	3,914
Wealden E07000065	1,298	143,026	346	14,792	689
Knowsley E08000011	1,793	141,962	119	10,037	608
Flintshire W06000005	1,423	141,881	222	10,955	481
North East Lincolnshire E06000012	1,534	141,536	186	13,036	674
Slough E06000039	2,166	141,153	308	12,691	2,182
Cherwell E07000177	1,775	140,866	397	16,450	1,529
Blackburn with Darwen E06000008	1,925	140,262	212	11,091	1,249
Braintree E07000067	1,445	139,393	268	13,709	453
Dacorum E07000096	1,786	138,732	388	13,200	975
King's Lynn and West Norfolk E07000146	1,364	138,317	203	13,309	1,132
Swale E07000113	1,587	136,340	171	13,101	478
South Tyneside E08000023	1,454	135,692	142	9,952	536
Mid Sussex E07000228	1,508	135,506	401	14,043	1,110
Windsor and Maidenhead E06000040	1,462	135,155	597	14,382	1,903
Reigate and Banstead E07000211	1,681	133,758	421	13,764	1,222
East Devon E07000040	1,192	133,747	362	14,785	742
East Hertfordshire E07000242	1,560	133,114	467	14,050	967
Tendring E07000076	1,259	133,062	169	13,469	333
Bridgend W06000013	1,346	132,884	205	10,582	471
St Albans E07000240	1,493	131,177	528	13,535	1,434
South Oxfordshire E07000179	1,478	130,899	541	15,088	1,079
Horsham E07000227	1,322	130,226	386	13,823	1,021
Neath Port Talbot W06000012	1,266	130,003	361	10,189	470
Canterbury E07000106	1,237	128,984	4,209	20,843	2,156
South Kesteven E07000141	1,264	128,896	338	12,273	633
East Lindsey E07000137	1,047	127,824	200	12,708	515
South Norfolk E07000149	1,259	127,198	315	12,529	646
Preston E07000123	1,756	126,872	1,573	15,246	2,388
Middlesbrough E06000002	1,621	126,756	755	12,548	2,244
Breckland E07000143	1,224	126,541	188	12,684	839
Blackpool E06000009	1,407	126,403	180	12,146	901
Thanet E07000114	1,399	125,590	195	12,693	710
Torbay E06000027	1,083	125,210	271	12,087	673
Redcar and Cleveland E06000003	1,176	125,080	148	9,796	331
Isle of Wight E06000046	991	125,058	234	13,499	677
Warwick E07000222	1,372	124,703	2,946	17,299	2,133
Ipswich E07000202	1,529	124,491	275	12,269	1,078
Wrexham W06000006	1,256	123,205	278	9,851	527
Stafford E07000197	1,225	122,506	254	12,317	565
Eastleigh E07000086	1,382	121,898	251	12,303	607
Elmbridge E07000207	1,525	121,875	436	13,211	1,705
Epping Forest E07000072	1,511	121,777	251	10,795	647
Nuneaton and Bedworth E07000219	1,474	121,508	197	10,411	606
Teignbridge E07000045	1,042	120,897	241	12,136	487
Powys W06000023	1,052	120,584	285	10,779	472
Vale of White Horse E07000180	1,397	120,360	586	15,180	1,391
Lancaster E07000121	1,235	120,294	3,417	16,105	1,882
Broadland E07000144	1,015	119,805	175	10,342	384
Wychavon E07000238	1,159	119,801	265	10,720	548
North Hertfordshire E07000099	1,411	119,595	357	11,243	603
Tonbridge and Malling E07000115	1,354	119,508	264	10,490	585
Oxford E07000178	1,382	119,351	6,696	28,019	6,590
Vale of Glamorgan W06000014	1,229	118,965	299	10,796	651
Stratford-on-Avon E07000221	1,198	118,631	317	13,889	691
Halton E06000006	1,261	117,889	150	8,678	500
Ashford E07000105	1,408	117,597	265	12,515	962
Gloucester E07000081	1,404	117,446	764	12,130	672
Guildford E07000209	1,243	116,855	2,914	19,855	2,783
Kensington and Chelsea E09000020	1,270	116,001	1,704	18,751	5,649
Test Valley E07000093	1,215	115,949	306	12,284	737
Norwich E07000148	1,341	115,730	3,621	21,162	2,069
Ashfield E07000170	1,240	115,556	143	9,027	333
Amber Valley E07000032	1,097	115,187	200	9,395	330
Havant E07000090	1,129	112,860	158	9,666	395
Waverley E07000216	1,101	112,092	720	13,182	1,134
East Hampshire E07000085	1,085	112,021	323	11,597	718
Pembrokeshire W06000009	1,001	111,751	248	9,851	508
East Staffordshire E07000193	1,339	111,408	191	10,337	742
Cambridge E07000008	1,224	110,415	4,807	23,033	6,195
Newark and Sherwood E07000175	1,201	109,646	234	11,390	484
Newcastle-under-Lyme E07000195	1,116	109,233	1,214	11,174	562
Bracknell Forest E06000036	1,352	109,157	339	12,693	1,067
Stroud E07000082	995	109,126	288	10,207	488
Sevenoaks E07000111	1,243	108,586	317	9,604	764
Chichester E07000225	932	107,642	805	13,826	863
Winchester E07000094	1,085	107,218	1,634	16,181	1,326
Chorley E07000118	1,108	106,963	181	9,121	360
Gedling E07000173	1,137	106,723	267	8,769	365
Bassetlaw E07000171	1,116	106,232	164	9,937	355
North Kesteven E07000139	984	105,242	280	11,029	539
Rushcliffe E07000176	1,040	104,980	1,083	11,257	718
Crawley E07000226	1,500	104,672	202	11,044	1,075
Conwy W06000003	932	104,581	243	8,592	393
Dartford E07000107	1,599	104,492	185	9,699	778
Dover E07000108	1,060	104,385	201	10,213	551
Fareham E07000087	898	103,551	221	9,347	496
Hinckley and Bosworth E07000132	1,023	103,369	220	8,733	297
Gwynedd W06000002	983	103,294	1,675	10,723	717
Erewash E07000036	983	103,179	153	8,304	286
West Lancashire E07000127	929	102,626	1,459	11,861	556
Welwyn Hatfield E07000241	1,237	101,621	1,753	12,904	2,321
South Ribble E07000126	1,025	101,308	182	8,232	288
Exeter E07000041	1,163	101,262	5,648	20,068	2,568
Cheltenham E07000078	1,027	101,105	1,225	14,236	1,243
Tunbridge Wells E07000116	1,131	100,877	347	11,976	980
South Staffordshire E07000196	931	100,713	157	8,482	189
Rugby E07000220	1,188	100,482	312	11,471	910
Wyre E07000128	932	100,183	189	10,231	411
Mansfield E07000174	1,103	99,885	134	8,744	616
West Oxfordshire E07000181	1,077	99,582	320	12,359	899
Worthing E07000229	1,025	99,053	217	10,433	610
Broxtowe E07000172	957	98,718	921	9,462	882
Folkestone and Hythe E07000112	949	98,606	197	9,446	560
Gravesham E07000109	1,269	97,035	166	7,896	534
Hertsmere E07000098	1,192	96,587	399	8,866	783
Darlington E06000005	1,040	96,392	177	9,672	518
Lichfield E07000194	963	96,068	200	8,883	323
South Derbyshire E07000039	1,095	95,900	188	9,692	333
Chesterfield E07000034	951	94,291	153	7,857	317
Blaby E07000129	1,031	93,855	162	7,554	324
North West Leicestershire E07000134	1,052	93,680	436	9,180	357
North East Derbyshire E07000038	910	93,191	128	7,539	233
North Norfolk E07000147	628	92,794	158	9,028	372
Wyre Forest E07000239	883	92,606	161	7,765	192
Fenland E07000010	970	92,077	120	8,857	438
Spelthorne E07000213	1,143	91,931	196	8,888	798
Mid Suffolk E07000203	866	91,729	208	9,348	548
Cannock Chase E07000192	1,095	91,531	119	7,569	205
Woking E07000217	1,178	91,294	311	9,777	1,383
Worcester E07000237	986	90,364	920	10,657	945
Bromsgrove E07000234	888	90,084	233	7,642	335
Watford E07000103	1,270	89,925	220	9,450	1,381
Broxbourne E07000095	1,116	89,918	181	7,401	390
Lewes E07000063	798	89,710	175	8,756	465
Eastbourne E07000061	888	89,697	360	9,947	794
Great Yarmouth E07000145	922	89,483	99	8,625	619
Hart E07000089	929	88,143	238	9,421	678
Staffordshire Moorlands E07000198	794	88,008	135	6,717	192
Rushmoor E07000092	1,265	87,478	218	9,872	923
North Devon E07000043	789	87,346	191	9,740	545
Pendle E07000122	1,105	86,759	130	6,781	982
Denbighshire W06000004	862	86,655	172	7,817	311
Harborough E07000131	871	86,565	241	9,460	491
West Lindsey E07000142	783	85,375	169	8,491	339
Burnley E07000117	1,050	85,154	111	7,438	891
Torfaen W06000020	915	84,981	107	6,115	158
Tewkesbury E07000083	971	84,936	191	8,327	458
Three Rivers E07000102	977	84,831	300	7,032	631
South Holland E07000140	897	84,679	131	8,934	481
Monmouthshire W06000021	735	84,351	226	7,248	397
Harlow E07000073	1,190	83,476	119	7,878	664
Rother E07000064	677	83,474	181	8,340	438
Hartlepool E06000001	918	83,133	181	7,834	271
Babergh E07000200	713	82,819	185	8,308	316
High Peak E07000037	783	82,590	212	7,061	287
Lincoln E07000138	1,035	82,373	3,697	15,426	1,282
Castle Point E07000069	801	82,097	101	6,405	183
Uttlesford E07000077	833	81,835	233	7,972	468
Hastings E07000062	900	81,213	123	8,196	563
Stevenage E07000243	1,056	80,556	203	6,901	777
Surrey Heath E07000214	832	80,540	253	8,052	776
Cotswold E07000079	744	79,614	384	9,406	681
Tandridge E07000215	914	79,205	259	6,993	503
Redditch E07000236	956	79,035	120	6,543	384
East Cambridgeshire E07000009	794	78,690	194	7,455	629
Mole Valley E07000210	730	78,505	290	7,304	558
Forest of Dean E07000080	724	78,416	204	7,314	346
South Hams E07000044	581	78,377	192	8,945	532
Rochford E07000075	793	78,219	124	6,346	178
Hyndburn E07000120	893	74,961	108	5,986	287
Mid Devon E07000042	752	73,913	168	7,668	350
Gosport E07000088	823	73,403	93	7,295	339
Runnymede E07000212	885	73,125	2,042	10,740	1,287
Bolsover E07000033	816	72,636	84	6,459	279
Fylde E07000119	581	72,522	141	7,404	728
Epsom and Ewell E07000208	867	72,489	291	6,517	774
Malvern Hills E07000235	549	71,392	244	6,898	403
Tamworth E07000199	855	70,962	82	6,503	245
Brentwood E07000068	801	68,905	174	6,685	485
Rossendale E07000125	688	64,697	103	5,202	181
Derbyshire Dales E07000035	478	64,594	154	6,005	309
Isle of Anglesey W06000001	573	62,787	166	5,210	145
Boston E07000136	643	62,453	81	6,539	786
Blaenau Gwent W06000019	662	61,611	76	4,449	105
Torridge E07000046	517	60,863	113	6,320	301
Ceredigion W06000008	501	60,417	1,760	8,278	516
Maldon E07000074	559	59,564	95	5,780	209
North Warwickshire E07000218	599	59,145	81	5,049	161
Adur E07000223	539	58,791	93	4,888	233
Ribble Valley E07000124	464	54,987	146	5,650	314
Merthyr Tydfil W06000024	607	54,365	51	3,573	243
Oadby and Wigston E07000135	493	51,280	189	5,313	472
West Devon E07000047	417	51,150	145	5,097	287
Melton E07000133	435	46,603	89	4,417	208
Rutland E06000017	275	36,049	201	4,239	284
City of London E09000001	44	6,237	190	1,564	548
Isles of Scilly E06000053	18	1,844	3	175	13
Barnsley E08000038	given for its area before 1 April 2025, under E08000016	given for its area before 1 April 2025, under E08000016	given for its area before 1 April 2025, under E08000016	given for its area before 1 April 2025, under E08000016	given for its area before 1 April 2025, under E08000016
Sheffield E08000039	given for its area before 1 April 2025, under E08000019	given for its area before 1 April 2025, under E08000019	given for its area before 1 April 2025, under E08000019	given for its area before 1 April 2025, under E08000019	given for its area before 1 April 2025, under E08000019

Download CSV Download JSON with full provenance

Map

Address one year ago is the same as the address of enumeration · 316 areas, each shaded by the fifth of the areas its figure falls in

1,844 to 90k
90k to 116k
116k to 145k
145k to 237k
237k to 1.0m

Boundaries: Council boundaries, May 2026, from the geography spine. Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.

Source and licence

Publisher

Office for National Statistics (Census 2021)

Check it yourself

https://www.ons.gov.uk/datasets/create

Licence

Open Government Licence v3.0 – Contains public sector information licensed under the Open Government Licence v3.0.

Retrieved

30 October 2026, 11:41 UTC

Raw files fetched

https://api.beta.ons.gov.uk/v1/population-types/UR/census-observations?area-type=ltla23&dimensions=migrant_indSHA-256 b190608b4b814b78bf758e35a469aa0fc5dff8c4868bc5ab073ef88a41c3959f · 509,191 bytes
https://api.beta.ons.gov.uk/v1/population-types/UR/dimensions?limit=500SHA-256 456ad46108ca3f46230c3ddad0b5fc65750b9dd557b85a949e0a67d4ca524d12 · 26,631 bytes

Verification

Verified against source, 30 October 2026, 11:47 UTC Run at 30 October 2026, 11:47 UTC; 1590 of 1590 figures matched the live source.

Result	Check	Detail
Pass	Provenance recorded	Office for National Statistics (Census 2021); Open Government Licence v3.0; retrieved 2026-10-30T11:41:47Z; 2 raw file(s)
Pass	Raw files match recorded SHA-256	2 of 2 files intact
Pass	Re-parsing raw files reproduces figures	1590 of 1590 figures and the headline reproduced
Pass	Figures are finite numbers	1590 figures, 0 invalid
Pass	Live source matches every figure	1590 of 1590 figures match exactly after downloading 2 source file(s) again (2 byte-identical); the headline matches
Pass	The ONS's answer for England and for Wales agrees	in 10 of 10 cells (a category in a nation) the councils sum to the nation's count at https://api.beta.ons.gov.uk/v1/population-types/UR/census-observations?area-type=ctry&dimensions=migrant_ind within twice the square root of the councils summed (1 exactly; the largest gap 0.46 of its limit), the Census's cell-by-cell perturbation
Pass	Source page answers	https://www.ons.gov.uk/datasets/create – HTTP 200

Notes

Census Day was the 21st of March 2021. The ONS perturbs every count slightly to protect privacy, each cell on its own, so a council's categories can add up to a total a few people different from one topic to another, and its councils add up to England's and Wales's counts only within a few dozen.
By council as the ONS's Census API gives them, its lower-tier local authorities of 2023, with Barnsley's and Sheffield's figures under the codes they had until the 1st of April 2025, as the API gives them. Scotland's and Northern Ireland's censuses are separate, so their councils are not here.
Every council's categories together count all its usual residents, “Does not apply” those the question was not asked of.
The ONS's description of the topic, “Migrant indicator (5 categories)”: The migration indicator classifies people based on the difference between their current address and their address one year ago. It provides an indicator of the movement of people within the UK and from outside the UK, in the one-year period before the census.