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Rock Valley, IA Historical Age Data

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ACS 2010-2014 data

Total population: 3,495

Median Age (see rank)

Rock Valley, IA	33.20 years old
Iowa	38.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Rock Valley, IA	30.90 years old
Iowa	36.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Rock Valley, IA	36.40 years old
Iowa	39.40 years old
U.S.	38.80 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	319	9.13%, see rank	6.39%	6.36%
5 to 9 years	320	9.16%, see rank	6.62%	6.51%
10 to 14 years	243	6.95%, see rank	6.58%	6.59%
15 to 19 years	224	6.41%, see rank	6.96%	6.85%
20 to 24 years	235	6.72%, see rank	7.21%	7.13%
25 to 34 years	555	15.88%, see rank	12.65%	13.47%
35 to 44 years	354	10.13%, see rank	11.80%	12.96%
45 to 54 years	359	10.27%, see rank	13.73%	14.09%
55 to 64 years	354	10.13%, see rank	12.80%	12.29%
65 to 74 years	141	4.03%, see rank	7.81%	7.64%
75 to 84	284	8.13%, see rank	4.98%	4.25%
85 years and over	107	3.06%, see rank	2.48%	1.85%

US Census 2010 data

Total population: 3,354

Median Age (see rank)

Rock Valley, IA	35.80 years old
Iowa	38.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Rock Valley, IA	32.90 years old
Iowa	36.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Rock Valley, IA	38.60 years old
Iowa	39.50 years old
U.S.	38.50 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	294	8.77%, see rank	6.63%	6.54%
5 to 9 years	248	7.39%, see rank	6.59%	6.59%
10 to 14 years	239	7.13%, see rank	6.59%	6.70%
15 to 19 years	204	6.08%, see rank	7.12%	7.14%
20 to 24 years	201	5.99%, see rank	7.00%	6.99%
25 to 34 years	462	13.77%, see rank	12.56%	13.30%
35 to 44 years	386	11.51%, see rank	11.97%	13.30%
45 to 54 years	367	10.94%, see rank	14.43%	14.58%
55 to 64 years	287	8.56%, see rank	12.24%	11.82%
65 to 74 years	261	7.78%, see rank	7.37%	7.03%
75 to 84	279	8.32%, see rank	5.04%	4.23%
85 years and over	126	3.76%, see rank	2.45%	1.78%

ACS 2008-2012 data

Total population: 3,369

Median Age (see rank)

Rock Valley, IA	35.50 years old
Iowa	38.00 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Rock Valley, IA	30.70 years old
Iowa	36.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Rock Valley, IA	41.10 years old
Iowa	39.40 years old
U.S.	38.50 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	243	7.21%, see rank	6.53%	6.51%
5 to 9 years	185	5.49%, see rank	6.58%	6.57%
10 to 14 years	349	10.36%, see rank	6.60%	6.68%
15 to 19 years	334	9.91%, see rank	7.14%	7.09%
20 to 24 years	181	5.37%, see rank	7.08%	7.04%
25 to 34 years	381	11.31%, see rank	12.55%	13.32%
35 to 44 years	421	12.50%, see rank	12.02%	13.34%
45 to 54 years	477	14.16%, see rank	14.28%	14.44%
55 to 64 years	230	6.83%, see rank	12.27%	11.84%
65 to 74 years	131	3.89%, see rank	7.45%	7.12%
75 to 84	293	8.70%, see rank	5.08%	4.25%
85 years and over	144	4.27%, see rank	2.42%	1.78%

ACS 2006-2010 data

Total population: 3,274

Median Age (see rank)

Rock Valley, IA	38.60 years old
Iowa	38.00 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Rock Valley, IA	35.80 years old
Iowa	36.60 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Rock Valley, IA	43.90 years old
Iowa	39.30 years old
U.S.	38.10 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	198	6.05%, see rank	6.56%	6.62%
5 to 9 years	228	6.96%, see rank	6.57%	6.62%
10 to 14 years	278	8.49%, see rank	6.64%	6.79%
15 to 19 years	195	5.96%, see rank	7.28%	7.28%
20 to 24 years	238	7.27%, see rank	7.14%	6.98%
25 to 34 years	316	9.65%, see rank	12.25%	13.22%
35 to 44 years	391	11.94%, see rank	12.56%	13.89%
45 to 54 years	515	15.73%, see rank	14.61%	14.57%
55 to 64 years	306	9.35%, see rank	11.58%	11.28%
65 to 74 years	142	4.34%, see rank	7.21%	6.74%
75 to 84	290	8.86%, see rank	5.24%	4.30%
85 years and over	177	5.41%, see rank	2.36%	1.70%

ACS 2005-2009 data

Total population: 3,109

Median Age (see rank)

Rock Valley, IA	39.60 years old
Iowa	37.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Rock Valley, IA	37.60 years old
Iowa	36.50 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Rock Valley, IA	42.00 years old
Iowa	39.30 years old
U.S.	37.90 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	183	5.89%, see rank	6.61%	6.92%
5 to 9 years	211	6.79%, see rank	6.38%	6.59%
10 to 14 years	248	7.98%, see rank	6.59%	6.83%
15 to 19 years	181	5.82%, see rank	7.37%	7.15%
20 to 24 years	230	7.40%, see rank	7.65%	7.02%
25 to 34 years	292	9.39%, see rank	11.90%	13.42%
35 to 44 years	367	11.80%, see rank	12.95%	14.18%
45 to 54 years	489	15.73%, see rank	14.71%	14.48%
55 to 64 years	289	9.30%, see rank	11.11%	10.81%
65 to 74 years	175	5.63%, see rank	7.05%	6.50%
75 to 84	290	9.33%, see rank	5.30%	4.40%
85 years and over	154	4.95%, see rank	2.38%	1.71%

US Census 2000 data

Total population: 2,702

Median Age (see rank)

Rock Valley, IA	38.20 years old
Iowa	36.60 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Rock Valley, IA	35.60 years old
Iowa	35.20 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Rock Valley, IA	39.90 years old
Iowa	38.00 years old
U.S.	36.50 years old

	Rock Valley, IA	% of the Total Population	Iowa	U.S.
Under 5 years	190	7.03%, see rank	6.44%	6.81%
5 to 9 years	186	6.88%, see rank	6.92%	7.30%
10 to 14 years	182	6.74%, see rank	7.19%	7.29%
15 to 19 years	211	7.81%, see rank	7.74%	7.18%
20 to 24 years	176	6.51%, see rank	6.96%	6.74%
25 to 34 years	314	11.62%, see rank	12.41%	14.18%
35 to 44 years	345	12.77%, see rank	15.21%	16.04%
45 to 54 years	280	10.36%, see rank	13.42%	13.39%
55 to 64 years	215	7.96%, see rank	8.80%	8.63%
65 to 74 years	322	11.92%, see rank	7.24%	6.54%
75 to 84	219	8.11%, see rank	5.44%	4.39%
85 years and over	62	2.29%, see rank	2.23%	1.51%

* ACS stands for U.S. Census American Community Survey. According to the U.S. Census, if the date is a range, you can interpret the data as an average of the period of time.