Sioux City Times

Of the 20,723 people living in Buena Vista County, Iowa in 2021, 47.3% (9,800) were women and 52.7% (10,923) were men, according to U.S. Census Bureau data obtained by Sioux City Times.

Data showed the average age for men in Buena Vista County in 2021 was 36 years, lower than the national average of 40 for men.

According to census data, men aged 18 and over outnumbered women in the same age group by 621. Meanwhile, in the 65 and over group, there were 1,456 men and 1,662 women.

An agency of the U.S. Federal Statistical System, the Census Bureau is responsible for compiling statistical facts about the American people, places and economy. Data for this story was compiled from the bureau's American Community Survey. Information from the survey helps to determine how federal and state funds are distributed. These funds significantly influence community services, education, and infrastructure in areas like Buena Vista County.

Age Range (Years)	Sex	Population in 2021	Population in 2020	Population in 2019	Change 2020-2021	Change 2019-2020
Under 5	Female	575	729	761	-21.1%	-4.2%
Under 5	Male	907	714	736	27%	-3%
5 to 9	Female	632	694	714	-8.9%	-2.8%
5 to 9	Male	982	845	791	16.2%	6.8%
10 to 14	Female	759	776	702	-2.2%	10.5%
10 to 14	Male	558	474	590	17.7%	-19.7%
15 to 17	Female	395	452	421	-12.6%	7.4%
15 to 17	Male	622	476	479	30.7%	-0.6%
18 and 19	Female	459	356	302	28.9%	17.9%
18 and 19	Male	313	375	409	-16.5%	-8.3%
20	Female	78	137	161	-43.1%	-14.9%
20	Male	143	95	101	50.5%	-5.9%
21	Female	245	220	280	11.4%	-21.4%
21	Male	188	299	247	-37.1%	21.1%
22 to 24	Female	357	372	402	-4%	-7.5%
22 to 24	Male	434	469	398	-7.5%	17.8%
25 to 29	Female	670	655	643	2.3%	1.9%
25 to 29	Male	746	584	592	27.7%	-1.4%
30 to 34	Female	544	552	561	-1.4%	-1.6%
30 to 34	Male	681	695	723	-2%	-3.9%
35 to 39	Female	648	697	690	-7%	1%
35 to 39	Male	593	683	599	-13.2%	14%
40 to 44	Female	425	435	415	-2.3%	4.8%
40 to 44	Male	533	434	492	22.8%	-11.8%
45 to 49	Female	602	470	490	28.1%	-4.1%
45 to 49	Male	729	575	569	26.8%	1.1%
50 to 54	Female	501	495	550	1.2%	-10%
50 to 54	Male	546	517	549	5.6%	-5.8%
55 to 59	Female	680	848	757	-19.8%	12%
55 to 59	Male	804	674	655	19.3%	2.9%
60 and 61	Female	238	212	199	12.3%	6.5%
60 and 61	Male	238	214	234	11.2%	-8.5%
62 to 64	Female	330	283	355	16.6%	-20.3%
62 to 64	Male	450	425	464	5.9%	-8.4%
65 and 66	Female	271	187	184	44.9%	1.6%
65 and 66	Male	227	210	223	8.1%	-5.8%
67 to 69	Female	296	314	287	-5.7%	9.4%
67 to 69	Male	291	266	308	9.4%	-13.6%
70 to 74	Female	297	333	316	-10.8%	5.4%
70 to 74	Male	365	331	277	10.3%	19.5%
75 to 79	Female	293	234	211	25.2%	10.9%
75 to 79	Male	277	215	218	28.8%	-1.4%
80 to 84	Female	98	168	241	-41.7%	-30.3%
80 to 84	Male	131	131	149	0%	-12.1%
85 and over	Female	407	428	417	-4.9%	2.6%
85 and over	Male	165	202	196	-18.3%	3.1%

Source: US Census Bureau