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Niwot, CO Historical Age Data

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ACS 2010-2014 data

Total population: 4,732

Median Age (see rank)

Niwot, CO	45.10 years old
Colorado	36.20 years old
U.S.	37.40 years old

Median Age, Male (see rank)

Niwot, CO	45.20 years old
Colorado	35.30 years old
U.S.	36.10 years old

Median Age, Female (see rank)

Niwot, CO	44.90 years old
Colorado	37.30 years old
U.S.	38.80 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	102	2.16%, see rank	6.49%	6.36%
5 to 9 years	413	8.73%, see rank	6.79%	6.51%
10 to 14 years	480	10.14%, see rank	6.63%	6.59%
15 to 19 years	564	11.92%, see rank	6.57%	6.85%
20 to 24 years	63	1.33%, see rank	7.07%	7.13%
25 to 34 years	332	7.02%, see rank	14.71%	13.47%
35 to 44 years	400	8.45%, see rank	13.67%	12.96%
45 to 54 years	1,136	24.01%, see rank	13.93%	14.09%
55 to 64 years	768	16.23%, see rank	12.31%	12.29%
65 to 74 years	233	4.92%, see rank	6.91%	7.64%
75 to 84	226	4.78%, see rank	3.46%	4.25%
85 years and over	15	0.32%, see rank	1.45%	1.85%

US Census 2010 data

Total population: 4,006

Median Age (see rank)

Niwot, CO	46.70 years old
Colorado	36.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Niwot, CO	47.00 years old
Colorado	35.10 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Niwot, CO	46.50 years old
Colorado	37.10 years old
U.S.	38.50 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	132	3.30%, see rank	6.84%	6.54%
5 to 9 years	249	6.22%, see rank	6.93%	6.59%
10 to 14 years	387	9.66%, see rank	6.61%	6.70%
15 to 19 years	348	8.69%, see rank	6.75%	7.14%
20 to 24 years	101	2.52%, see rank	6.93%	6.99%
25 to 34 years	183	4.57%, see rank	14.44%	13.30%
35 to 44 years	461	11.51%, see rank	13.91%	13.30%
45 to 54 years	1,026	25.61%, see rank	14.77%	14.58%
55 to 64 years	680	16.97%, see rank	11.88%	11.82%
65 to 74 years	297	7.41%, see rank	6.16%	7.03%
75 to 84	113	2.82%, see rank	3.38%	4.23%
85 years and over	29	0.72%, see rank	1.38%	1.78%

ACS 2008-2012 data

Total population: 4,199

Median Age (see rank)

Niwot, CO	45.50 years old
Colorado	36.10 years old
U.S.	37.20 years old

Median Age, Male (see rank)

Niwot, CO	47.20 years old
Colorado	35.10 years old
U.S.	35.80 years old

Median Age, Female (see rank)

Niwot, CO	44.10 years old
Colorado	37.10 years old
U.S.	38.50 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	57	1.36%, see rank	6.76%	6.51%
5 to 9 years	368	8.76%, see rank	6.91%	6.57%
10 to 14 years	480	11.43%, see rank	6.56%	6.68%
15 to 19 years	511	12.17%, see rank	6.75%	7.09%
20 to 24 years	40	0.95%, see rank	7.00%	7.04%
25 to 34 years	139	3.31%, see rank	14.49%	13.32%
35 to 44 years	473	11.26%, see rank	13.95%	13.34%
45 to 54 years	1,102	26.24%, see rank	14.59%	14.44%
55 to 64 years	681	16.22%, see rank	11.90%	11.84%
65 to 74 years	181	4.31%, see rank	6.27%	7.12%
75 to 84	140	3.33%, see rank	3.39%	4.25%
85 years and over	27	0.64%, see rank	1.41%	1.78%

ACS 2006-2010 data

Total population: 3,897

Median Age (see rank)

Niwot, CO	47.70 years old
Colorado	35.80 years old
U.S.	36.90 years old

Median Age, Male (see rank)

Niwot, CO	48.00 years old
Colorado	34.90 years old
U.S.	35.60 years old

Median Age, Female (see rank)

Niwot, CO	47.60 years old
Colorado	36.80 years old
U.S.	38.10 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	82	2.10%, see rank	6.96%	6.62%
5 to 9 years	199	5.11%, see rank	6.93%	6.62%
10 to 14 years	407	10.44%, see rank	6.57%	6.79%
15 to 19 years	421	10.80%, see rank	6.97%	7.28%
20 to 24 years	71	1.82%, see rank	7.06%	6.98%
25 to 34 years	99	2.54%, see rank	14.33%	13.22%
35 to 44 years	392	10.06%, see rank	14.40%	13.89%
45 to 54 years	991	25.43%, see rank	14.99%	14.57%
55 to 64 years	835	21.43%, see rank	11.25%	11.28%
65 to 74 years	200	5.13%, see rank	5.81%	6.74%
75 to 84	184	4.72%, see rank	3.40%	4.30%
85 years and over	16	0.41%, see rank	1.33%	1.70%

ACS 2005-2009 data

Total population: 4,051

Median Age (see rank)

Niwot, CO	46.10 years old
Colorado	35.50 years old
U.S.	36.50 years old

Median Age, Male (see rank)

Niwot, CO	47.10 years old
Colorado	34.60 years old
U.S.	35.20 years old

Median Age, Female (see rank)

Niwot, CO	45.40 years old
Colorado	36.50 years old
U.S.	37.90 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	98	2.42%, see rank	7.27%	6.92%
5 to 9 years	244	6.02%, see rank	6.78%	6.59%
10 to 14 years	433	10.69%, see rank	6.56%	6.83%
15 to 19 years	363	8.96%, see rank	6.88%	7.15%
20 to 24 years	141	3.48%, see rank	7.34%	7.02%
25 to 34 years	134	3.31%, see rank	14.45%	13.42%
35 to 44 years	484	11.95%, see rank	14.70%	14.18%
45 to 54 years	1,022	25.23%, see rank	15.01%	14.48%
55 to 64 years	763	18.83%, see rank	10.72%	10.81%
65 to 74 years	178	4.39%, see rank	5.58%	6.50%
75 to 84	172	4.25%, see rank	3.39%	4.40%
85 years and over	19	0.47%, see rank	1.30%	1.71%

US Census 2000 data

Total population: 4,160

Median Age (see rank)

Niwot, CO	40.00 years old
Colorado	34.30 years old
U.S.	35.30 years old

Median Age, Male (see rank)

Niwot, CO	39.80 years old
Colorado	33.20 years old
U.S.	34.00 years old

Median Age, Female (see rank)

Niwot, CO	40.20 years old
Colorado	35.40 years old
U.S.	36.50 years old

	Niwot, CO	% of the Total Population	Colorado	U.S.
Under 5 years	222	5.34%, see rank	6.92%	6.81%
5 to 9 years	360	8.65%, see rank	7.17%	7.30%
10 to 14 years	403	9.69%, see rank	7.24%	7.29%
15 to 19 years	276	6.63%, see rank	7.14%	7.18%
20 to 24 years	124	2.98%, see rank	7.12%	6.74%
25 to 34 years	352	8.46%, see rank	15.44%	14.18%
35 to 44 years	874	21.01%, see rank	17.13%	16.04%
45 to 54 years	905	21.75%, see rank	14.28%	13.39%
55 to 64 years	397	9.54%, see rank	7.89%	8.63%
65 to 74 years	165	3.97%, see rank	5.26%	6.54%
75 to 84	62	1.49%, see rank	3.29%	4.39%
85 years and over	20	0.48%, see rank	1.12%	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.