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Lake County Historical Age Data

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ACS 2010-2014 data

Total population: 493,140

Median Age (see rank)

Lake County	37.80 years old
Indiana	37.20 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Lake County	36.20 years old
Indiana	35.90 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Lake County	39.30 years old
Indiana	38.50 years old
U.S.	38.80 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	31,935	6.48%, see rank	6.48%	6.36%
5 to 9 years	35,333	7.16%, see rank	6.81%	6.51%
10 to 14 years	34,415	6.98%, see rank	6.87%	6.59%
15 to 19 years	34,761	7.05%, see rank	7.09%	6.85%
20 to 24 years	31,097	6.31%, see rank	7.21%	7.13%
25 to 34 years	61,604	12.49%, see rank	12.78%	13.47%
35 to 44 years	61,825	12.54%, see rank	12.70%	12.96%
45 to 54 years	70,034	14.20%, see rank	14.04%	14.09%
55 to 64 years	63,795	12.94%, see rank	12.43%	12.29%
65 to 74 years	36,951	7.49%, see rank	7.52%	7.64%
75 to 84	21,646	4.39%, see rank	4.22%	4.25%
85 years and over	9,744	1.98%, see rank	1.84%	1.85%

US Census 2010 data

Total population: 496,005

Median Age (see rank)

Lake County	37.40 years old
Indiana	37.00 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Lake County	35.90 years old
Indiana	35.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Lake County	38.80 years old
Indiana	38.20 years old
U.S.	38.50 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	33,258	6.71%, see rank	6.69%	6.54%
5 to 9 years	35,119	7.08%, see rank	6.86%	6.59%
10 to 14 years	36,356	7.33%, see rank	6.97%	6.70%
15 to 19 years	36,400	7.34%, see rank	7.33%	7.14%
20 to 24 years	29,346	5.92%, see rank	6.97%	6.99%
25 to 34 years	62,823	12.67%, see rank	12.76%	13.30%
35 to 44 years	62,630	12.63%, see rank	12.97%	13.30%
45 to 54 years	73,841	14.89%, see rank	14.60%	14.58%
55 to 64 years	60,362	12.17%, see rank	11.86%	11.82%
65 to 74 years	34,431	6.94%, see rank	6.98%	7.03%
75 to 84	22,372	4.51%, see rank	4.22%	4.23%
85 years and over	9,067	1.83%, see rank	1.78%	1.78%

ACS 2008-2012 data

Total population: 495,230

Median Age (see rank)

Lake County	37.30 years old
Indiana	37.00 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Lake County	35.90 years old
Indiana	35.60 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Lake County	38.70 years old
Indiana	38.30 years old
U.S.	38.50 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	33,200	6.70%, see rank	6.65%	6.51%
5 to 9 years	36,036	7.28%, see rank	6.83%	6.57%
10 to 14 years	35,153	7.10%, see rank	6.97%	6.68%
15 to 19 years	35,899	7.25%, see rank	7.30%	7.09%
20 to 24 years	29,778	6.01%, see rank	7.05%	7.04%
25 to 34 years	62,591	12.64%, see rank	12.78%	13.32%
35 to 44 years	62,787	12.68%, see rank	13.01%	13.34%
45 to 54 years	73,169	14.77%, see rank	14.45%	14.44%
55 to 64 years	60,335	12.18%, see rank	11.90%	11.84%
65 to 74 years	34,914	7.05%, see rank	7.05%	7.12%
75 to 84	22,368	4.52%, see rank	4.29%	4.25%
85 years and over	9,000	1.82%, see rank	1.73%	1.78%

ACS 2006-2010 data

Total population: 494,417

Median Age (see rank)

Lake County	36.90 years old
Indiana	36.60 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Lake County	35.60 years old
Indiana	35.30 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Lake County	38.30 years old
Indiana	37.90 years old
U.S.	38.10 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	33,900	6.86%, see rank	6.77%	6.62%
5 to 9 years	35,377	7.16%, see rank	6.91%	6.62%
10 to 14 years	36,758	7.43%, see rank	7.01%	6.79%
15 to 19 years	36,012	7.28%, see rank	7.41%	7.28%
20 to 24 years	29,595	5.99%, see rank	7.00%	6.98%
25 to 34 years	62,473	12.64%, see rank	12.80%	13.22%
35 to 44 years	64,339	13.01%, see rank	13.52%	13.89%
45 to 54 years	74,540	15.08%, see rank	14.62%	14.57%
55 to 64 years	56,328	11.39%, see rank	11.27%	11.28%
65 to 74 years	33,577	6.79%, see rank	6.69%	6.74%
75 to 84	22,847	4.62%, see rank	4.34%	4.30%
85 years and over	8,671	1.75%, see rank	1.67%	1.70%

ACS 2005-2009 data

Total population: 491,203

Median Age (see rank)

Lake County	36.90 years old
Indiana	36.40 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Lake County	35.50 years old
Indiana	35.10 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Lake County	38.10 years old
Indiana	37.80 years old
U.S.	37.90 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	35,073	7.14%, see rank	6.96%	6.92%
5 to 9 years	35,129	7.15%, see rank	6.77%	6.59%
10 to 14 years	37,508	7.64%, see rank	6.98%	6.83%
15 to 19 years	35,057	7.14%, see rank	7.28%	7.15%
20 to 24 years	29,500	6.01%, see rank	7.08%	7.02%
25 to 34 years	60,657	12.35%, see rank	13.05%	13.42%
35 to 44 years	65,766	13.39%, see rank	13.86%	14.18%
45 to 54 years	75,105	15.29%, see rank	14.59%	14.48%
55 to 64 years	53,738	10.94%, see rank	10.84%	10.81%
65 to 74 years	32,495	6.62%, see rank	6.51%	6.50%
75 to 84	23,028	4.69%, see rank	4.38%	4.40%
85 years and over	8,147	1.66%, see rank	1.71%	1.71%

US Census 2000 data

Total population: 484,564

Median Age (see rank)

Lake County	35.90 years old
Indiana	35.20 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Lake County	34.50 years old
Indiana	33.90 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Lake County	37.20 years old
Indiana	36.50 years old
U.S.	36.50 years old

	Lake County	% of the Total Population	Indiana	U.S.
Under 5 years	34,639	7.15%, see rank	6.96%	6.81%
5 to 9 years	36,745	7.58%, see rank	7.29%	7.30%
10 to 14 years	35,954	7.42%, see rank	7.29%	7.29%
15 to 19 years	36,423	7.52%, see rank	7.46%	7.18%
20 to 24 years	30,870	6.37%, see rank	7.00%	6.74%
25 to 34 years	61,452	12.68%, see rank	13.67%	14.18%
35 to 44 years	75,722	15.63%, see rank	15.80%	16.04%
45 to 54 years	66,445	13.71%, see rank	13.43%	13.39%
55 to 64 years	43,080	8.89%, see rank	8.71%	8.63%
65 to 74 years	33,968	7.01%, see rank	6.50%	6.54%
75 to 84	22,551	4.65%, see rank	4.37%	4.39%
85 years and over	6,715	1.39%, see rank	1.51%	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.