County Population Estimates

Williamson County, TX [48491] Demographic Characteristics & Trends
-- a component of the Austin-Round Rock, TX metropolitan area [12420] -- click link to view metro S&O report

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

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	426,325	442,177	456,070	470,448	488,385	507,420	527,769	547,545	121,220
Births	...	6,134	5,987	6,053	6,324	6,434	6,556	6,714	6,315
Deaths	...	1,966	2,066	2,132	2,296	2,500	2,798	2,751	2,358
Natural Increase	...	4,168	3,921	3,921	4,028	3,934	3,758	3,963	3,956
Net Migration	...	11,423	9,778	10,300	13,590	14,877	16,563	15,744	13,182
International	...	823	873	952	1,112	1,268	1,271	1,250	1,078
Domestic	...	10,600	8,905	9,348	12,478	13,609	15,292	14,494	12,104

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

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	426,325	442,177	456,070	470,448	488,385	507,420	527,769	547,545	121,220
Male	209,883	217,453	224,287	231,308	240,152	249,511	259,644	269,787	59,904
Female	216,442	224,724	231,783	239,140	248,233	257,909	268,125	277,758	61,316
Group Quarters	...	5,027	5,396	5,488	5,774	5,814	5,861	5,864	756

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

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Total Population	426,325	442,177	456,070	470,448	488,385	507,420	527,769	547,545	121,220
White alone	363,225	375,198	385,700	395,846	408,630	422,270	435,693	448,892	85,667
Black alone	27,620	29,033	29,876	31,069	32,703	34,245	36,532	38,628	11,008
AIAN alone	3,686	3,815	3,949	4,107	4,345	4,482	4,649	4,700	1,014
Asian alone	21,351	22,979	24,738	26,691	29,267	32,164	35,664	39,167	17,816
NHOPI alone	560	621	658	687	708	742	822	859	299
Two+ Races	9,883	10,531	11,149	12,048	12,732	13,517	14,409	15,299	5,416
Hispanic (any race)	99,184	103,868	107,407	111,624	116,436	121,836	127,788	134,252	35,068

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	547,545	448,892	38,628	4,700	39,167	859	15,299	134,252
Age 0-4	36,390	28,209	2,595	321	2,987	98	2,180	11,182
Age 5-9	40,033	30,990	2,881	311	3,374	73	2,404	12,245
Age 10-14	41,637	32,865	3,149	381	3,077	44	2,121	12,824
Age 15-19	37,552	30,192	3,096	404	2,186	55	1,619	11,933
Age 20-24	30,286	24,457	2,631	318	1,711	44	1,125	10,252
Age 25-29	34,459	27,730	3,069	360	2,348	71	881	10,211
Age 30-34	41,748	33,466	2,989	364	3,882	72	975	11,435
Age 35-39	45,816	36,006	3,426	368	4,938	78	1,000	11,820
Age 40-44	43,097	34,166	3,097	402	4,606	62	764	10,657
Age 45-49	40,732	33,596	2,956	374	3,107	73	626	9,288
Age 50-54	33,673	28,366	2,535	293	1,986	53	440	6,806
Age 55-59	30,982	26,685	2,231	252	1,356	43	415	5,224
Age 60-64	26,027	22,974	1,574	186	989	28	276	3,744
Age 65-69	22,819	20,294	1,171	153	973	30	198	2,695
Age 70-74	17,765	16,193	575	92	751	14	140	1,688
Age 75-79	11,161	10,259	281	53	495	12	61	1,017
Age 80-84	6,850	6,320	183	36	277	2	32	684
Age 85 up	6,518	6,124	189	32	124	7	42	547

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

Item	2010	2011	2012	2013	2014	2015	2016	2017	2010-2017
Age 0000	6,263	6,130	5,986	6,048	6,325	6,427	6,557	6,722	459
Age 0101	6,506	6,523	6,358	6,334	6,491	6,763	6,861	6,998	492
Age 0202	6,854	6,713	6,792	6,689	6,671	6,971	7,228	7,259	405
Age 0303	6,877	7,058	6,888	6,959	7,022	7,026	7,347	7,679	802
Age 0404	6,962	7,063	7,269	7,103	7,190	7,376	7,393	7,732	770
Age 0505	7,108	7,092	7,254	7,472	7,357	7,413	7,681	7,755	647
Age 0606	7,209	7,346	7,281	7,397	7,681	7,570	7,697	7,961	752
Age 0707	7,044	7,455	7,587	7,401	7,607	7,813	7,815	7,964	920
Age 0808	7,034	7,243	7,565	7,678	7,564	7,834	8,058	8,065	1,031
Age 0909	7,241	7,196	7,403	7,725	7,881	7,765	8,095	8,288	1,047
Age 1010	7,139	7,408	7,390	7,480	7,940	8,068	7,982	8,311	1,172
Age 1111	6,976	7,368	7,497	7,511	7,661	8,144	8,307	8,157	1,181
Age 1212	6,855	7,120	7,510	7,611	7,669	7,850	8,323	8,480	1,625
Age 1313	6,741	6,987	7,267	7,666	7,773	7,794	8,023	8,505	1,764
Age 1414	6,456	6,885	7,110	7,413	7,821	7,930	8,047	8,184	1,728
Age 1515	6,299	6,641	6,948	7,201	7,564	7,923	8,121	8,177	1,878
Age 1616	6,306	6,433	6,708	7,023	7,274	7,638	8,002	8,232	1,926
Age 1717	6,104	6,408	6,464	6,802	7,119	7,328	7,843	8,119	2,015
Age 1818	5,448	5,605	5,846	5,885	6,206	6,496	6,613	7,122	1,674
Age 1919	4,503	4,934	5,081	5,296	5,255	5,553	5,745	5,902	1,399
Age 2020	4,358	4,669	5,153	5,298	5,486	5,481	5,850	6,009	1,651
Age 2121	4,158	4,475	4,743	5,324	5,358	5,586	5,581	5,953	1,795
Age 2222	4,286	4,461	4,717	4,992	5,566	5,618	5,834	5,914	1,628
Age 2323	4,540	4,599	4,750	5,050	5,328	5,837	5,873	6,136	1,596
Age 2424	4,929	4,870	4,820	4,920	5,402	5,689	6,215	6,274	1,345
Age 2525	5,358	5,411	5,188	5,119	5,419	5,837	6,164	6,555	1,197
Age 2626	5,520	5,781	5,557	5,549	5,561	5,876	6,351	6,641	1,121
Age 2727	5,960	5,975	6,152	5,929	6,099	6,114	6,585	6,996	1,036
Age 2828	6,235	6,278	6,253	6,411	6,498	6,581	6,662	7,080	845
Age 2929	6,332	6,580	6,563	6,591	6,860	6,967	7,085	7,187	855
Age 3030	6,801	6,621	6,863	6,922	7,012	7,303	7,548	7,732	931
Age 3131	6,766	7,226	6,912	7,249	7,307	7,488	7,866	8,125	1,359
Age 3232	6,909	7,013	7,570	7,212	7,696	7,865	8,067	8,415	1,506
Age 3333	7,129	7,256	7,370	7,836	7,616	8,250	8,342	8,665	1,536
Age 3434	6,939	7,420	7,531	7,599	8,252	8,072	8,788	8,811	1,872
Age 3535	7,116	7,225	7,631	7,865	7,901	8,615	8,551	9,247	2,131
Age 3636	7,139	7,372	7,423	7,933	8,169	8,242	9,002	8,963	1,824
Age 3737	7,063	7,326	7,566	7,589	8,233	8,484	8,619	9,439	2,376
Age 3838	7,356	7,275	7,516	7,809	7,941	8,498	8,854	9,023	1,667
Age 3939	7,719	7,542	7,418	7,633	8,015	8,119	8,884	9,144	1,425
Age 4040	7,831	7,914	7,649	7,571	7,739	8,296	8,372	9,121	1,290
Age 4141	7,242	8,010	8,010	7,857	7,754	8,000	8,554	8,702	1,460
Age 4242	6,705	7,335	8,041	8,068	7,972	7,937	8,135	8,716	2,011
Age 4343	6,297	6,806	7,402	8,139	8,216	8,145	8,074	8,253	1,956
Age 4444	6,215	6,407	6,885	7,407	8,320	8,412	8,371	8,305	2,090
Age 4545	6,412	6,347	6,567	6,924	7,500	8,435	8,577	8,453	2,041
Age 4646	6,510	6,452	6,328	6,571	6,950	7,582	8,492	8,636	2,126
Age 4747	6,477	6,668	6,575	6,462	6,658	7,187	7,746	8,577	2,100
Age 4848	6,243	6,434	6,681	6,542	6,501	6,717	7,245	7,762	1,519
Age 4949	6,107	6,283	6,439	6,661	6,596	6,571	6,763	7,304	1,197
Age 5050	5,966	6,165	6,277	6,469	6,698	6,636	6,584	6,769	803
Age 5151	5,489	6,014	6,249	6,274	6,542	6,795	6,686	6,682	1,193
Age 5252	5,353	5,587	6,086	6,239	6,336	6,586	6,811	6,719	1,366
Age 5353	5,154	5,404	5,590	6,107	6,306	6,442	6,607	6,874	1,720
Age 5454	4,874	5,149	5,477	5,645	6,180	6,404	6,517	6,629	1,755
Age 5555	4,822	4,875	5,211	5,510	5,725	6,241	6,462	6,521	1,699
Age 5656	4,564	4,887	4,968	5,267	5,596	5,789	6,257	6,543	1,979
Age 5757	4,462	4,647	4,929	5,037	5,337	5,686	5,826	6,280	1,818
Age 5858	4,162	4,504	4,669	4,982	5,119	5,409	5,757	5,842	1,680
Age 5959	4,035	4,228	4,573	4,769	5,044	5,219	5,458	5,796	1,761
Age 6060	3,930	4,100	4,305	4,610	4,822	5,093	5,245	5,517	1,587
Age 6161	3,772	3,969	4,189	4,382	4,687	4,834	5,189	5,302	1,530
Age 6262	3,773	3,863	4,099	4,262	4,484	4,795	4,951	5,246	1,473
Age 6363	4,071	3,886	3,959	4,175	4,331	4,574	4,833	5,019	948
Age 6464	2,990	4,208	4,042	4,087	4,289	4,455	4,705	4,943	1,953
Age 6565	2,907	3,078	4,339	4,161	4,219	4,414	4,579	4,757	1,850
Age 6666	2,882	2,992	3,154	4,435	4,251	4,294	4,493	4,641	1,759
Age 6767	2,921	2,941	3,002	3,199	4,528	4,323	4,391	4,504	1,583
Age 6868	2,620	2,965	3,005	3,109	3,269	4,652	4,430	4,464	1,844
Age 6969	2,384	2,633	2,975	3,061	3,149	3,308	4,717	4,453	2,069
Age 7070	2,124	2,397	2,659	3,034	3,130	3,233	3,359	4,735	2,611
Age 7171	2,006	2,184	2,408	2,723	3,065	3,178	3,278	3,393	1,387
Age 7272	1,901	2,007	2,171	2,419	2,729	3,085	3,202	3,288	1,387
Age 7373	1,793	1,907	2,009	2,194	2,435	2,730	3,104	3,213	1,420
Age 7474	1,606	1,800	1,891	2,015	2,203	2,424	2,732	3,136	1,530
Age 7575	1,517	1,643	1,799	1,916	2,034	2,227	2,443	2,731	1,214
Age 7676	1,395	1,500	1,595	1,782	1,903	2,031	2,197	2,403	1,008
Age 7777	1,322	1,400	1,471	1,578	1,764	1,903	1,994	2,177	855
Age 7878	1,220	1,295	1,379	1,465	1,560	1,748	1,913	1,978	758
Age 7979	1,126	1,181	1,268	1,351	1,457	1,533	1,699	1,872	746
Age 8080	1,094	1,104	1,161	1,230	1,317	1,431	1,522	1,676	582
Age 8181	973	1,060	1,090	1,144	1,213	1,308	1,425	1,507	534
Age 8282	915	921	1,031	1,062	1,107	1,162	1,258	1,366	451
Age 8383	845	878	893	980	1,034	1,100	1,118	1,220	375
Age 8484	724	822	848	848	953	968	1,052	1,081	357
Age 8585	4,056	4,344	4,822	5,201	5,573	5,924	6,187	6,518	2,462
Age 0517	88,512	91,582	93,984	96,380	98,911	101,070	103,994	106,198	17,686