Youngest Cities in Iowa.

Cities in Iowa with the youngest populations by median age.

#	City	Population	Median Age	Population Growth
1	Ames	67,669	23.3	+2.7%
2	Iowa City	75,752	26.2	+1.9%
3	Cedar Falls	40,888	29.3	+1.3%
4	Storm Lake	11,428	30.9	+2.8%
5	North Liberty	21,125	31.7	+7.3%
6	Waverly	10,494	32.8	+1.5%
7	Ankeny	72,615	33.6	+14.3%
8	Coralville	23,234	34.0	+7.3%
9	Des Moines	212,421	34.6	-0.9%
10	Waukee	29,236	34.7	+45.7%
11	Sioux City	86,101	34.9	+0.5%
12	Pella	10,720	35.2	+5.1%
13	Grimes	16,366	35.4	+12.2%
14	Marshalltown	27,626	35.7	-0.2%
15	Indianola	16,044	35.9	+6.3%
16	West Des Moines	71,083	36.0	+8.0%
17	Altoona	21,495	36.1	+15.9%
18	Waterloo	67,008	36.7	-0.6%
19	Ottumwa	25,430	36.7	-0.9%
20	Muscatine	23,489	37.0	-2.8%
21	Cedar Rapids	137,264	37.3	+0.1%
22	Johnston	24,384	37.4	+4.7%
23	Clive	19,012	37.4	+6.7%
24	Davenport	100,913	37.5	-1.3%
25	Fort Dodge	24,827	37.6	-0.2%
26	Oskaloosa	11,504	37.6	-0.5%
27	Norwalk	14,183	37.8	+17.2%
28	Dubuque	59,174	38.1	-0.9%
29	Council Bluffs	62,586	38.7	-0.2%
30	Le Mars	10,640	39.0	+1.7%
31	Urbandale	46,595	39.2	+6.6%
32	Pleasant Hill	11,136	39.5	+10.7%
33	Marion	41,896	40.6	+2.8%
34	Bettendorf	39,647	40.9	+4.1%
35	Boone	12,424	41.3	+0.2%
36	Spencer	11,400	41.4	-0.9%
37	Fort Madison	10,133	42.1	-3.7%
38	Mason City	27,050	42.5	-1.8%
39	Burlington	23,728	42.5	-2.8%
40	Newton	15,700	42.6	-0.1%
41	Carroll	10,208	43.6	-2.4%
42	Clinton	24,322	44.0	-1.7%