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Rock Falls, IL Historical Age Data

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ACS 2010-2014 data

Total population: 9,111

Median Age (see rank)

Rock Falls, IL	40.50 years old
Illinois	37.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Rock Falls, IL	38.00 years old
Illinois	35.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Rock Falls, IL	41.20 years old
Illinois	38.40 years old
U.S.	38.80 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	664	7.29%, see rank	6.30%	6.36%
5 to 9 years	544	5.97%, see rank	6.58%	6.51%
10 to 14 years	513	5.63%, see rank	6.71%	6.59%
15 to 19 years	531	5.83%, see rank	6.94%	6.85%
20 to 24 years	612	6.72%, see rank	6.95%	7.13%
25 to 34 years	1,121	12.30%, see rank	13.84%	13.47%
35 to 44 years	1,080	11.85%, see rank	13.20%	12.96%
45 to 54 years	1,269	13.93%, see rank	14.17%	14.09%
55 to 64 years	1,223	13.42%, see rank	12.13%	12.29%
65 to 74 years	872	9.57%, see rank	7.18%	7.64%
75 to 84	461	5.06%, see rank	4.10%	4.25%
85 years and over	221	2.43%, see rank	1.90%	1.85%

US Census 2010 data

Total population: 9,266

Median Age (see rank)

Rock Falls, IL	38.80 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Rock Falls, IL	37.40 years old
Illinois	35.20 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Rock Falls, IL	40.10 years old
Illinois	37.90 years old
U.S.	38.50 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	684	7.38%, see rank	6.51%	6.54%
5 to 9 years	644	6.95%, see rank	6.70%	6.59%
10 to 14 years	631	6.81%, see rank	6.85%	6.70%
15 to 19 years	597	6.44%, see rank	7.19%	7.14%
20 to 24 years	577	6.23%, see rank	6.85%	6.99%
25 to 34 years	1,107	11.95%, see rank	13.84%	13.30%
35 to 44 years	1,146	12.37%, see rank	13.45%	13.30%
45 to 54 years	1,293	13.95%, see rank	14.58%	14.58%
55 to 64 years	1,130	12.20%, see rank	11.48%	11.82%
65 to 74 years	756	8.16%, see rank	6.62%	7.03%
75 to 84	488	5.27%, see rank	4.09%	4.23%
85 years and over	213	2.30%, see rank	1.83%	1.78%

ACS 2008-2012 data

Total population: 9,075

Median Age (see rank)

Rock Falls, IL	39.70 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Rock Falls, IL	37.00 years old
Illinois	35.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Rock Falls, IL	40.80 years old
Illinois	38.00 years old
U.S.	38.50 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	736	8.11%, see rank	6.50%	6.51%
5 to 9 years	552	6.08%, see rank	6.68%	6.57%
10 to 14 years	407	4.48%, see rank	6.82%	6.68%
15 to 19 years	697	7.68%, see rank	7.16%	7.09%
20 to 24 years	669	7.37%, see rank	6.88%	7.04%
25 to 34 years	1,104	12.17%, see rank	13.84%	13.32%
35 to 44 years	935	10.30%, see rank	13.49%	13.34%
45 to 54 years	1,278	14.08%, see rank	14.46%	14.44%
55 to 64 years	1,258	13.86%, see rank	11.52%	11.84%
65 to 74 years	729	8.03%, see rank	6.71%	7.12%
75 to 84	473	5.21%, see rank	4.11%	4.25%
85 years and over	237	2.61%, see rank	1.83%	1.78%

ACS 2006-2010 data

Total population: 9,237

Median Age (see rank)

Rock Falls, IL	39.00 years old
Illinois	36.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Rock Falls, IL	39.40 years old
Illinois	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Rock Falls, IL	38.30 years old
Illinois	37.60 years old
U.S.	38.10 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	748	8.10%, see rank	6.63%	6.62%
5 to 9 years	667	7.22%, see rank	6.78%	6.62%
10 to 14 years	413	4.47%, see rank	6.94%	6.79%
15 to 19 years	569	6.16%, see rank	7.31%	7.28%
20 to 24 years	627	6.79%, see rank	6.86%	6.98%
25 to 34 years	1,289	13.95%, see rank	13.78%	13.22%
35 to 44 years	955	10.34%, see rank	13.96%	13.89%
45 to 54 years	1,370	14.83%, see rank	14.55%	14.57%
55 to 64 years	1,233	13.35%, see rank	10.89%	11.28%
65 to 74 years	701	7.59%, see rank	6.36%	6.74%
75 to 84	467	5.06%, see rank	4.17%	4.30%
85 years and over	198	2.14%, see rank	1.77%	1.70%

ACS 2005-2009 data

Total population: 9,261

Median Age (see rank)

Rock Falls, IL	39.90 years old
Illinois	35.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Rock Falls, IL	38.40 years old
Illinois	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Rock Falls, IL	41.60 years old
Illinois	37.20 years old
U.S.	37.90 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	738	7.97%, see rank	6.97%	6.92%
5 to 9 years	683	7.38%, see rank	6.76%	6.59%
10 to 14 years	404	4.36%, see rank	6.96%	6.83%
15 to 19 years	559	6.04%, see rank	7.24%	7.15%
20 to 24 years	754	8.14%, see rank	7.08%	7.02%
25 to 34 years	1,103	11.91%, see rank	13.73%	13.42%
35 to 44 years	1,014	10.95%, see rank	14.23%	14.18%
45 to 54 years	1,192	12.87%, see rank	14.47%	14.48%
55 to 64 years	1,354	14.62%, see rank	10.43%	10.81%
65 to 74 years	661	7.14%, see rank	6.21%	6.50%
75 to 84	638	6.89%, see rank	4.17%	4.40%
85 years and over	161	1.74%, see rank	1.74%	1.71%

US Census 2000 data

Total population: 9,580

Median Age (see rank)

Rock Falls, IL	36.10 years old
Illinois	34.70 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Rock Falls, IL	34.50 years old
Illinois	33.30 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Rock Falls, IL	37.70 years old
Illinois	36.00 years old
U.S.	36.50 years old

	Rock Falls, IL	% of the Total Population	Illinois	U.S.
Under 5 years	703	7.34%, see rank	7.06%	6.81%
5 to 9 years	693	7.23%, see rank	7.49%	7.30%
10 to 14 years	687	7.17%, see rank	7.29%	7.29%
15 to 19 years	614	6.41%, see rank	7.20%	7.18%
20 to 24 years	612	6.39%, see rank	6.85%	6.74%
25 to 34 years	1,338	13.97%, see rank	14.59%	14.18%
35 to 44 years	1,309	13.66%, see rank	15.97%	16.04%
45 to 54 years	1,234	12.88%, see rank	13.10%	13.39%
55 to 64 years	865	9.03%, see rank	8.38%	8.63%
65 to 74 years	791	8.26%, see rank	6.22%	6.54%
75 to 84	574	5.99%, see rank	4.31%	4.39%
85 years and over	160	1.67%, see rank	1.55%	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.