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West Northfield School District 31 Historical Age Data

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ACS 2010-2014 data

Total population: 9,898

Median Age (see rank)

West Northfield School District 31	48.30 years old
Illinois	37.00 years old
U.S.	37.40 years old

Median Age, Male (see rank)

West Northfield School District 31	43.50 years old
Illinois	35.70 years old
U.S.	36.10 years old

Median Age, Female (see rank)

West Northfield School District 31	50.20 years old
Illinois	38.40 years old
U.S.	38.80 years old

	West Northfield School District 31	% of the Total Population	Illinois	U.S.
Under 5 years	434	4.38%, see rank	6.30%	6.36%
5 to 9 years	560	5.66%, see rank	6.58%	6.51%
10 to 14 years	443	4.48%, see rank	6.71%	6.59%
15 to 19 years	577	5.83%, see rank	6.94%	6.85%
20 to 24 years	686	6.93%, see rank	6.95%	7.13%
25 to 34 years	949	9.59%, see rank	13.84%	13.47%
35 to 44 years	986	9.96%, see rank	13.20%	12.96%
45 to 54 years	1,553	15.69%, see rank	14.17%	14.09%
55 to 64 years	1,441	14.56%, see rank	12.13%	12.29%
65 to 74 years	1,049	10.60%, see rank	7.18%	7.64%
75 to 84	739	7.47%, see rank	4.10%	4.25%
85 years and over	481	4.86%, see rank	1.90%	1.85%

US Census 2010 data

Total population: 9,824

Median Age (see rank)

West Northfield School District 31	46.20 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

West Northfield School District 31	44.30 years old
Illinois	35.20 years old
U.S.	35.80 years old

Median Age, Female (see rank)

West Northfield School District 31	47.70 years old
Illinois	37.90 years old
U.S.	38.50 years old

	West Northfield School District 31	% of the Total Population	Illinois	U.S.
Under 5 years	439	4.47%, see rank	6.51%	6.54%
5 to 9 years	539	5.49%, see rank	6.70%	6.59%
10 to 14 years	596	6.07%, see rank	6.85%	6.70%
15 to 19 years	606	6.17%, see rank	7.19%	7.14%
20 to 24 years	426	4.34%, see rank	6.85%	6.99%
25 to 34 years	993	10.11%, see rank	13.84%	13.30%
35 to 44 years	1,156	11.77%, see rank	13.45%	13.30%
45 to 54 years	1,496	15.23%, see rank	14.58%	14.58%
55 to 64 years	1,356	13.80%, see rank	11.48%	11.82%
65 to 74 years	913	9.29%, see rank	6.62%	7.03%
75 to 84	798	8.12%, see rank	4.09%	4.23%
85 years and over	506	5.15%, see rank	1.83%	1.78%

ACS 2008-2012 data

Total population: 9,767

Median Age (see rank)

West Northfield School District 31	48.10 years old
Illinois	36.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

West Northfield School District 31	41.70 years old
Illinois	35.30 years old
U.S.	35.80 years old

Median Age, Female (see rank)

West Northfield School District 31	51.10 years old
Illinois	38.00 years old
U.S.	38.50 years old

	West Northfield School District 31	% of the Total Population	Illinois	U.S.
Under 5 years	426	4.36%, see rank	6.50%	6.51%
5 to 9 years	477	4.88%, see rank	6.68%	6.57%
10 to 14 years	423	4.33%, see rank	6.82%	6.68%
15 to 19 years	785	8.04%, see rank	7.16%	7.09%
20 to 24 years	704	7.21%, see rank	6.88%	7.04%
25 to 34 years	774	7.92%, see rank	13.84%	13.32%
35 to 44 years	1,032	10.57%, see rank	13.49%	13.34%
45 to 54 years	1,680	17.20%, see rank	14.46%	14.44%
55 to 64 years	1,508	15.44%, see rank	11.52%	11.84%
65 to 74 years	842	8.62%, see rank	6.71%	7.12%
75 to 84	681	6.97%, see rank	4.11%	4.25%
85 years and over	435	4.45%, see rank	1.83%	1.78%

ACS 2006-2010 data

Total population: 9,769

Median Age (see rank)

West Northfield School District 31	45.70 years old
Illinois	36.20 years old
U.S.	36.90 years old

Median Age, Male (see rank)

West Northfield School District 31	42.40 years old
Illinois	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

West Northfield School District 31	48.20 years old
Illinois	37.60 years old
U.S.	38.10 years old

	West Northfield School District 31	% of the Total Population	Illinois	U.S.
Under 5 years	408	4.18%, see rank	6.63%	6.62%
5 to 9 years	587	6.01%, see rank	6.78%	6.62%
10 to 14 years	456	4.67%, see rank	6.94%	6.79%
15 to 19 years	802	8.21%, see rank	7.31%	7.28%
20 to 24 years	523	5.35%, see rank	6.86%	6.98%
25 to 34 years	901	9.22%, see rank	13.78%	13.22%
35 to 44 years	1,108	11.34%, see rank	13.96%	13.89%
45 to 54 years	1,441	14.75%, see rank	14.55%	14.57%
55 to 64 years	1,529	15.65%, see rank	10.89%	11.28%
65 to 74 years	771	7.89%, see rank	6.36%	6.74%
75 to 84	763	7.81%, see rank	4.17%	4.30%
85 years and over	480	4.91%, see rank	1.77%	1.70%

ACS 2005-2009 data

Total population: 9,246

Median Age (see rank)

West Northfield School District 31	48.20 years old
Illinois	35.90 years old
U.S.	36.50 years old

Median Age, Male (see rank)

West Northfield School District 31	43.80 years old
Illinois	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

West Northfield School District 31	49.90 years old
Illinois	37.20 years old
U.S.	37.90 years old

	West Northfield School District 31	% of the Total Population	Illinois	U.S.
Under 5 years	422	4.56%, see rank	6.97%	6.92%
5 to 9 years	462	5.00%, see rank	6.76%	6.59%
10 to 14 years	496	5.36%, see rank	6.96%	6.83%
15 to 19 years	657	7.11%, see rank	7.24%	7.15%
20 to 24 years	361	3.90%, see rank	7.08%	7.02%
25 to 34 years	783	8.47%, see rank	13.73%	13.42%
35 to 44 years	1,081	11.69%, see rank	14.23%	14.18%
45 to 54 years	1,303	14.09%, see rank	14.47%	14.48%
55 to 64 years	1,543	16.69%, see rank	10.43%	10.81%
65 to 74 years	936	10.12%, see rank	6.21%	6.50%
75 to 84	680	7.35%, see rank	4.17%	4.40%
85 years and over	522	5.65%, see rank	1.74%	1.71%

* 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.