SE Iowa News

Of the 15,846 people living in Jefferson County, Iowa in 2021, 48.8% (7,730) were women and 51.2% (8,116) were men, according to U.S. Census Bureau data obtained by SE Iowa News.

Data showed the average age for men in Jefferson County in 2021 was 43 years, higher 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 797. Meanwhile, in the 65 and over group, there were 1,723 men and 1,860 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 Jefferson County.

Age Range (Years)	Sex	Population in 2021	Population in 2020	Population in 2019	Change 2020-2021	Change 2019-2020
Under 5	Female	383	365	376	4.9%	-2.9%
Under 5	Male	467	421	423	10.9%	-0.5%
5 to 9	Female	658	1,216	422	-45.9%	188.2%
5 to 9	Male	333	347	298	-4%	16.4%
10 to 14	Female	435	300	425	45%	-29.4%
10 to 14	Male	368	346	399	6.4%	-13.3%
15 to 17	Female	264	251	255	5.2%	-1.6%
15 to 17	Male	298	333	269	-10.5%	23.8%
18 and 19	Female	147	146	117	0.7%	24.8%
18 and 19	Male	28	60	93	-53.3%	-35.5%
20	Female	51	87	360	-41.4%	-75.8%
20	Male	169	136	112	24.3%	21.4%
21	Female	58	59	78	-1.7%	-24.4%
21	Male	107	297	121	-64%	145.5%
22 to 24	Female	267	292	341	-8.6%	-14.4%
22 to 24	Male	341	295	423	15.6%	-30.3%
25 to 29	Female	416	589	590	-29.4%	-0.2%
25 to 29	Male	670	820	720	-18.3%	13.9%
30 to 34	Female	552	538	894	2.6%	-39.8%
30 to 34	Male	634	603	518	5.1%	16.4%
35 to 39	Female	355	460	363	-22.8%	26.7%
35 to 39	Male	467	573	571	-18.5%	0.4%
40 to 44	Female	423	498	611	-15.1%	-18.5%
40 to 44	Male	532	481	766	10.6%	-37.2%
45 to 49	Female	379	432	433	-12.3%	-0.2%
45 to 49	Male	418	477	458	-12.4%	4.1%
50 to 54	Female	387	474	542	-18.4%	-12.5%
50 to 54	Male	473	535	564	-11.6%	-5.1%
55 to 59	Female	575	723	563	-20.5%	28.4%
55 to 59	Male	467	566	677	-17.5%	-16.4%
60 and 61	Female	217	241	258	-10%	-6.6%
60 and 61	Male	182	223	281	-18.4%	-20.6%
62 to 64	Female	303	414	509	-26.8%	-18.7%
62 to 64	Male	439	519	403	-15.4%	28.8%
65 and 66	Female	249	327	351	-23.9%	-6.8%
65 and 66	Male	227	329	346	-31%	-4.9%
67 to 69	Female	403	442	443	-8.8%	-0.2%
67 to 69	Male	492	585	489	-15.9%	19.6%
70 to 74	Female	560	599	550	-6.5%	8.9%
70 to 74	Male	520	407	398	27.8%	2.3%
75 to 79	Female	246	182	217	35.2%	-16.1%
75 to 79	Male	192	269	331	-28.6%	-18.7%
80 to 84	Female	168	288	228	-41.7%	26.3%
80 to 84	Male	147	177	115	-16.9%	53.9%
85 and over	Female	234	306	333	-23.5%	-8.1%
85 and over	Male	145	125	114	16%	9.6%

Source: US Census Bureau