Middlesex County, CT [09007] Demographic Characteristics & Trends
  -- a component of the Hartford-West Hartford-East Hartford, CT metropolitan area [25540] -- click link to view metro S&O report

This document brings together several 2017 vintage population estimates developed by the Census Bureau for this area developed and released separately in 2018. These official model-based estimates are developed and updated annually. The data presesentation here provides more comprehensive insights into demographic characteristics and trends for this area than available elsewhere. ProximityOne uses these data to develop Situation & Outlook (S&O) estimates and projections to 2060. See related table. Join us in weekly Data Analytics Lab web sessions to discuss organization and use of these and related data. The S&O Trends Analysis package used to develop these tables is available to present/analyze these data with wide-ranging additional detail and alternative data formats.   • Bookmark this page -- http://proximityone.com/trends/cty1706037.htm; share with others.   • View profile for other counties -- http://proximityone.com/countytrends2017.htm; use link in table.

Table 1. Population & Components of Change -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	165,625	166,265	165,519	165,293	164,717	163,698	163,433	163,410	-2,215
Births	...	1,537	1,481	1,364	1,380	1,379	1,333	1,321	1,399
Deaths	...	1,458	1,428	1,490	1,495	1,522	1,454	1,447	1,471
Natural Increase	...	79	53	-126	-115	-143	-121	-126	-71
Net Migration	...	586	-798	-84	-452	-874	-142	109	-236
International	...	375	301	298	322	344	349	349	334
Domestic	...	211	-1,099	-382	-774	-1,218	-491	-240	-570

Table 2. Population by Gender & Group Quarters Population -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	165,625	166,265	165,519	165,293	164,717	163,698	163,433	163,410	-2,215
Male	80,901	81,216	80,816	80,686	80,412	79,817	79,716	79,667	-1,234
Female	84,724	85,049	84,703	84,607	84,305	83,881	83,717	83,743	-981
Group Quarters	...	5,162	5,052	4,901	4,854	4,684	4,651	4,652	-447

Table 3. Population by Race/Origin -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	165,625	166,265	165,519	165,293	164,717	163,698	163,433	163,410	-2,215
White alone	149,873	150,059	148,951	148,492	147,603	146,368	145,862	145,560	-4,313
Black alone	8,136	8,317	8,505	8,597	8,729	8,697	8,807	8,929	793
AIAN alone	302	311	348	388	420	429	413	443	141
Asian alone	4,354	4,489	4,606	4,650	4,752	4,935	5,004	5,070	716
NHOPI alone	87	96	95	102	109	108	108	108	21
Two+ Races	2,873	2,993	3,014	3,064	3,104	3,161	3,239	3,300	427
Hispanic (any race)	7,917	8,422	8,623	8,994	9,278	9,539	9,906	10,343	2,426

Table 4. Population by Age by Race/Origin -- 2017

Population	Total	White alone	Black alone	AIAN alone	Asian alone	NHOPI alone	Two+ Races	Hispanic (any race)
Total	163,410	145,560	8,929	443	5,070	108	3,300	10,343
Age 0-4	6,902	5,685	532	46	256	7	376	845
Age 5-9	7,645	6,397	584	25	242	4	393	850
Age 10-14	9,013	7,736	578	22	287	7	383	880
Age 15-19	10,314	8,678	693	24	474	14	431	936
Age 20-24	10,053	8,501	666	18	461	7	400	842
Age 25-29	9,174	7,769	727	43	386	12	237	917
Age 30-34	9,420	7,985	635	57	544	8	191	904
Age 35-39	8,904	7,737	576	20	400	14	157	817
Age 40-44	8,657	7,600	541	27	364	5	120	667
Age 45-49	11,558	10,366	677	27	358	8	122	711
Age 50-54	13,304	12,164	657	24	326	7	126	641
Age 55-59	13,958	12,916	622	34	284	4	98	437
Age 60-64	12,373	11,568	491	24	200	3	87	322
Age 65-69	10,287	9,667	365	27	166	3	59	179
Age 70-74	8,157	7,687	258	12	146	5	49	153
Age 75-79	5,282	5,001	159	5	84	0	33	94
Age 80-84	3,603	3,446	86	3	50	0	18	71
Age 85 up	4,806	4,657	82	5	42	0	20	77

Table 5. Population by Single Year of Age -- 2010-2017

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Age 0000	1,492	1,528	1,484	1,361	1,385	1,376	1,331	1,325	-167
Age 0101	1,575	1,552	1,573	1,485	1,346	1,383	1,415	1,342	-233
Age 0202	1,657	1,587	1,528	1,545	1,468	1,320	1,393	1,446	-211
Age 0303	1,651	1,660	1,551	1,511	1,550	1,456	1,328	1,410	-241
Age 0404	1,742	1,654	1,626	1,521	1,485	1,515	1,452	1,379	-363
Age 0505	1,841	1,777	1,646	1,625	1,525	1,452	1,523	1,467	-374
Age 0606	1,864	1,846	1,736	1,629	1,611	1,510	1,482	1,530	-334
Age 0707	1,908	1,879	1,838	1,746	1,642	1,612	1,516	1,497	-411
Age 0808	1,986	1,934	1,848	1,837	1,728	1,622	1,609	1,518	-468
Age 0909	1,995	1,996	1,905	1,857	1,813	1,717	1,637	1,633	-362
Age 1010	2,016	2,007	1,985	1,940	1,863	1,799	1,731	1,651	-365
Age 1111	2,120	2,024	1,958	1,969	1,930	1,894	1,785	1,736	-384
Age 1212	2,143	2,120	1,998	1,954	1,983	1,910	1,897	1,798	-345
Age 1313	2,119	2,146	2,111	2,015	1,981	1,974	1,905	1,903	-216
Age 1414	2,088	2,132	2,125	2,128	2,027	1,985	1,998	1,925	-163
Age 1515	2,218	2,091	2,112	2,128	2,157	2,029	1,978	2,004	-214
Age 1616	2,288	2,238	2,112	2,140	2,129	2,136	2,019	1,987	-301
Age 1717	2,198	2,262	2,220	2,113	2,133	2,118	2,129	1,990	-208
Age 1818	2,026	2,240	2,310	2,261	2,187	2,166	2,175	2,159	133
Age 1919	2,031	2,146	2,268	2,333	2,262	2,154	2,166	2,174	143
Age 2020	1,855	2,010	2,124	2,243	2,318	2,224	2,159	2,135	280
Age 2121	1,852	1,907	2,035	2,121	2,248	2,326	2,255	2,180	328
Age 2222	1,777	1,724	1,718	1,893	1,955	2,062	2,120	2,085	308
Age 2323	1,642	1,596	1,568	1,543	1,648	1,710	1,834	1,834	192
Age 2424	1,712	1,670	1,642	1,646	1,576	1,718	1,743	1,819	107
Age 2525	1,684	1,751	1,679	1,691	1,678	1,629	1,756	1,757	73
Age 2626	1,673	1,728	1,771	1,737	1,748	1,674	1,748	1,846	173
Age 2727	1,724	1,732	1,802	1,818	1,803	1,784	1,733	1,858	134
Age 2828	1,795	1,777	1,733	1,836	1,837	1,779	1,805	1,812	17
Age 2929	1,785	1,829	1,736	1,767	1,896	1,891	1,791	1,901	116
Age 3030	1,808	1,821	1,900	1,823	1,799	1,952	1,947	1,859	51
Age 3131	1,684	1,840	1,819	1,875	1,799	1,783	1,940	1,999	315
Age 3232	1,706	1,711	1,875	1,827	1,856	1,788	1,794	1,942	236
Age 3333	1,675	1,717	1,731	1,816	1,839	1,885	1,790	1,806	131
Age 3434	1,718	1,737	1,701	1,704	1,798	1,829	1,861	1,814	96
Age 3535	1,790	1,753	1,741	1,704	1,680	1,770	1,846	1,876	86
Age 3636	1,784	1,772	1,735	1,737	1,663	1,640	1,773	1,857	73
Age 3737	1,919	1,793	1,778	1,705	1,758	1,681	1,657	1,798	-121
Age 3838	2,114	1,910	1,754	1,776	1,671	1,717	1,682	1,665	-449
Age 3939	2,366	2,114	1,877	1,769	1,751	1,652	1,715	1,708	-658
Age 4040	2,483	2,344	2,097	1,873	1,744	1,741	1,625	1,684	-799
Age 4141	2,428	2,488	2,348	2,120	1,879	1,757	1,755	1,626	-802
Age 4242	2,484	2,444	2,479	2,329	2,097	1,860	1,756	1,750	-734
Age 4343	2,573	2,485	2,413	2,479	2,303	2,072	1,828	1,751	-822
Age 4444	2,680	2,571	2,474	2,404	2,436	2,322	2,079	1,846	-834
Age 4545	2,814	2,658	2,520	2,480	2,402	2,441	2,333	2,063	-751
Age 4646	2,823	2,797	2,628	2,481	2,484	2,407	2,417	2,274	-549
Age 4747	2,836	2,852	2,806	2,637	2,480	2,463	2,393	2,423	-413
Age 4848	2,830	2,838	2,849	2,813	2,648	2,479	2,462	2,388	-442
Age 4949	2,957	2,796	2,845	2,799	2,800	2,647	2,446	2,410	-547
Age 5050	2,946	2,978	2,795	2,826	2,776	2,770	2,606	2,429	-517
Age 5151	2,927	2,953	2,962	2,780	2,825	2,796	2,745	2,592	-335
Age 5252	2,867	2,889	2,930	2,982	2,762	2,787	2,777	2,738	-129
Age 5353	2,766	2,870	2,858	2,924	2,938	2,739	2,796	2,760	-6
Age 5454	2,746	2,790	2,866	2,867	2,921	2,922	2,733	2,785	39
Age 5555	2,714	2,745	2,755	2,856	2,857	2,922	2,889	2,726	12
Age 5656	2,606	2,721	2,743	2,738	2,835	2,810	2,901	2,873	267
Age 5757	2,561	2,557	2,684	2,731	2,707	2,785	2,783	2,886	325
Age 5858	2,513	2,551	2,533	2,652	2,699	2,687	2,761	2,748	235
Age 5959	2,323	2,491	2,485	2,506	2,627	2,682	2,665	2,725	402
Age 6060	2,276	2,286	2,436	2,456	2,456	2,571	2,648	2,635	359
Age 6161	2,161	2,265	2,253	2,398	2,426	2,424	2,525	2,594	433
Age 6262	2,299	2,170	2,269	2,209	2,386	2,396	2,396	2,489	190
Age 6363	2,455	2,241	2,106	2,237	2,168	2,353	2,364	2,346	-109
Age 6464	1,765	2,382	2,174	2,065	2,185	2,095	2,316	2,309	544
Age 6565	1,700	1,743	2,356	2,153	2,025	2,146	2,085	2,289	589
Age 6666	1,722	1,650	1,700	2,315	2,133	1,992	2,075	2,038	316
Age 6767	1,826	1,679	1,617	1,656	2,263	2,071	1,948	2,043	217
Age 6868	1,459	1,801	1,641	1,573	1,612	2,191	2,028	1,912	453
Age 6969	1,360	1,440	1,771	1,612	1,560	1,586	2,171	2,005	645
Age 7070	1,217	1,323	1,420	1,756	1,546	1,530	1,541	2,135	918
Age 7171	1,158	1,190	1,296	1,393	1,698	1,530	1,496	1,503	345
Age 7272	1,127	1,133	1,161	1,268	1,383	1,662	1,513	1,489	362
Age 7373	1,007	1,084	1,093	1,127	1,235	1,336	1,608	1,468	461
Age 7474	954	978	1,062	1,064	1,092	1,201	1,297	1,562	608
Age 7575	907	928	960	1,043	1,051	1,045	1,172	1,266	359
Age 7676	858	873	897	928	1,013	1,020	1,022	1,147	289
Age 7777	859	844	844	878	916	977	996	983	124
Age 7878	864	859	817	827	866	888	955	970	106
Age 7979	823	827	821	769	796	826	854	916	93
Age 8080	857	804	793	802	745	773	803	821	-36
Age 8181	816	789	757	741	772	710	732	765	-51
Age 8282	738	773	747	728	698	738	676	704	-34
Age 8383	745	703	739	716	696	646	703	651	-94
Age 8484	644	693	657	700	679	630	607	662	18
Age 8585	4,130	4,278	4,409	4,473	4,571	4,650	4,734	4,806	676
Age 0517	26,784	26,452	25,594	25,081	24,522	23,758	23,209	22,639	-4,145