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Lewis County Historical Age Data

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ACS 2010-2014 data

Total population: 3,822

Median Age (see rank)

Lewis County	48.40 years old
Idaho	35.20 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Lewis County	46.60 years old
Idaho	34.40 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Lewis County	49.70 years old
Idaho	36.00 years old
U.S.	38.80 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	198	5.18%, see rank	7.27%	6.36%
5 to 9 years	200	5.23%, see rank	7.53%	6.51%
10 to 14 years	271	7.09%, see rank	7.64%	6.59%
15 to 19 years	220	5.76%, see rank	7.12%	6.85%
20 to 24 years	155	4.06%, see rank	6.95%	7.13%
25 to 34 years	333	8.71%, see rank	13.25%	13.47%
35 to 44 years	377	9.86%, see rank	12.21%	12.96%
45 to 54 years	582	15.23%, see rank	12.71%	14.09%
55 to 64 years	600	15.70%, see rank	11.98%	12.29%
65 to 74 years	510	13.34%, see rank	7.76%	7.64%
75 to 84	298	7.80%, see rank	3.98%	4.25%
85 years and over	78	2.04%, see rank	1.60%	1.85%

US Census 2010 data

Total population: 3,821

Median Age (see rank)

Lewis County	48.00 years old
Idaho	34.60 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Lewis County	47.60 years old
Idaho	33.70 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Lewis County	48.30 years old
Idaho	35.40 years old
U.S.	38.50 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	238	6.23%, see rank	7.77%	6.54%
5 to 9 years	246	6.44%, see rank	7.73%	6.59%
10 to 14 years	213	5.57%, see rank	7.46%	6.70%
15 to 19 years	217	5.68%, see rank	7.36%	7.14%
20 to 24 years	159	4.16%, see rank	6.90%	6.99%
25 to 34 years	344	9.00%, see rank	13.33%	13.30%
35 to 44 years	345	9.03%, see rank	12.22%	13.30%
45 to 54 years	625	16.36%, see rank	13.30%	14.58%
55 to 64 years	600	15.70%, see rank	11.50%	11.82%
65 to 74 years	487	12.75%, see rank	6.99%	7.03%
75 to 84	254	6.65%, see rank	3.82%	4.23%
85 years and over	93	2.43%, see rank	1.61%	1.78%

ACS 2008-2012 data

Total population: 3,818

Median Age (see rank)

Lewis County	47.70 years old
Idaho	34.70 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Lewis County	46.90 years old
Idaho	33.80 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Lewis County	48.40 years old
Idaho	35.50 years old
U.S.	38.50 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	215	5.63%, see rank	7.63%	6.51%
5 to 9 years	173	4.53%, see rank	7.59%	6.57%
10 to 14 years	267	6.99%, see rank	7.52%	6.68%
15 to 19 years	246	6.44%, see rank	7.34%	7.09%
20 to 24 years	181	4.74%, see rank	7.03%	7.04%
25 to 34 years	324	8.49%, see rank	13.30%	13.32%
35 to 44 years	365	9.56%, see rank	12.28%	13.34%
45 to 54 years	614	16.08%, see rank	13.21%	14.44%
55 to 64 years	581	15.22%, see rank	11.57%	11.84%
65 to 74 years	487	12.76%, see rank	7.09%	7.12%
75 to 84	312	8.17%, see rank	3.88%	4.25%
85 years and over	53	1.39%, see rank	1.57%	1.78%

ACS 2006-2010 data

Total population: 3,761

Median Age (see rank)

Lewis County	47.60 years old
Idaho	34.40 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Lewis County	47.30 years old
Idaho	33.50 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Lewis County	47.70 years old
Idaho	35.30 years old
U.S.	38.10 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	200	5.32%, see rank	7.80%	6.62%
5 to 9 years	195	5.18%, see rank	7.58%	6.62%
10 to 14 years	214	5.69%, see rank	7.51%	6.79%
15 to 19 years	320	8.51%, see rank	7.58%	7.28%
20 to 24 years	162	4.31%, see rank	7.13%	6.98%
25 to 34 years	310	8.24%, see rank	13.18%	13.22%
35 to 44 years	363	9.65%, see rank	12.62%	13.89%
45 to 54 years	621	16.51%, see rank	13.58%	14.57%
55 to 64 years	547	14.54%, see rank	11.02%	11.28%
65 to 74 years	472	12.55%, see rank	6.60%	6.74%
75 to 84	274	7.29%, see rank	3.85%	4.30%
85 years and over	83	2.21%, see rank	1.54%	1.70%

ACS 2005-2009 data

Total population: 3,645

Median Age (see rank)

Lewis County	47.60 years old
Idaho	34.00 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Lewis County	47.60 years old
Idaho	33.20 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Lewis County	47.60 years old
Idaho	34.90 years old
U.S.	37.90 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	193	5.29%, see rank	7.96%	6.92%
5 to 9 years	175	4.80%, see rank	7.32%	6.59%
10 to 14 years	206	5.65%, see rank	7.43%	6.83%
15 to 19 years	301	8.26%, see rank	7.66%	7.15%
20 to 24 years	155	4.25%, see rank	7.55%	7.02%
25 to 34 years	279	7.65%, see rank	13.33%	13.42%
35 to 44 years	390	10.70%, see rank	12.81%	14.18%
45 to 54 years	585	16.05%, see rank	13.56%	14.48%
55 to 64 years	540	14.81%, see rank	10.64%	10.81%
65 to 74 years	427	11.71%, see rank	6.26%	6.50%
75 to 84	295	8.09%, see rank	3.91%	4.40%
85 years and over	99	2.72%, see rank	1.57%	1.71%

US Census 2000 data

Total population: 3,747

Median Age (see rank)

Lewis County	42.50 years old
Idaho	33.20 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Lewis County	41.30 years old
Idaho	32.20 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Lewis County	43.20 years old
Idaho	34.20 years old
U.S.	36.50 years old

	Lewis County	% of the Total Population	Idaho	U.S.
Under 5 years	179	4.78%, see rank	7.55%	6.81%
5 to 9 years	276	7.37%, see rank	7.79%	7.30%
10 to 14 years	305	8.14%, see rank	8.08%	7.29%
15 to 19 years	261	6.97%, see rank	8.57%	7.18%
20 to 24 years	127	3.39%, see rank	7.26%	6.74%
25 to 34 years	330	8.81%, see rank	13.09%	14.18%
35 to 44 years	561	14.97%, see rank	14.91%	16.04%
45 to 54 years	523	13.96%, see rank	13.16%	13.39%
55 to 64 years	492	13.13%, see rank	8.31%	8.63%
65 to 74 years	360	9.61%, see rank	5.87%	6.54%
75 to 84	249	6.65%, see rank	4.01%	4.39%
85 years and over	84	2.24%, see rank	1.40%	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.