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Niwot, CO Historical First Ancestry Data

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ACS 2010-2014 data

3,862 (81.61%) out of the total population of 4,732 reported first ancestry.

	Niwot, CO	% of the Total Population	Colorado	U.S.
Arab	46	0.97%, see rank	0.39%	0.56%
Czech	61	1.29%, see rank	0.70%	0.47%
Danish	88	1.86%, see rank	0.82%	0.42%
Dutch	129	2.73%, see rank	1.81%	1.40%
English	640	13.52%, see rank	10.49%	8.02%
French	203	4.29%, see rank	3.48%	3.34%
German	846	17.88%, see rank	20.88%	15.03%
Greek	53	1.12%, see rank	0.38%	0.41%
Hungarian	59	1.25%, see rank	0.39%	0.46%
Irish	560	11.83%, see rank	12.04%	10.80%
Italian	315	6.66%, see rank	5.10%	5.52%
Norwegian	55	1.16%, see rank	2.18%	1.42%
Polish	267	5.64%, see rank	2.51%	3.01%
Portuguese	0	0.00%, see rank	0.21%	0.44%
Russian	25	0.53%, see rank	1.09%	0.92%
Scotch-Irish	120	2.54%, see rank	1.27%	0.99%
Scottish	150	3.17%, see rank	2.56%	1.72%
Subsaharan African	12	0.25%, see rank	0.73%	0.95%
Swedish	222	4.69%, see rank	2.43%	1.27%
Swiss	0	0.00%, see rank	0.46%	0.30%
Ukrainian	0	0.00%, see rank	0.25%	0.31%
American	222	4.69%, see rank	5.18%	7.12%
Welsh	127	2.68%, see rank	0.92%	0.57%

ACS 2008-2012 data

3,640 (86.69%) out of the total population of 4,199 reported first ancestry.

	Niwot, CO	% of the Total Population	Colorado	U.S.
Arab	32	0.76%, see rank	0.36%	0.53%
Czech	38	0.90%, see rank	0.73%	0.50%
Danish	128	3.05%, see rank	0.90%	0.45%
Dutch	110	2.62%, see rank	1.91%	1.51%
English	493	11.74%, see rank	11.19%	8.53%
French	179	4.26%, see rank	3.75%	3.54%
German	974	23.20%, see rank	22.06%	15.79%
Greek	51	1.21%, see rank	0.40%	0.42%
Hungarian	35	0.83%, see rank	0.42%	0.48%
Irish	445	10.60%, see rank	12.52%	11.36%
Italian	325	7.74%, see rank	5.22%	5.66%
Norwegian	82	1.95%, see rank	2.26%	1.46%
Polish	316	7.53%, see rank	2.55%	3.13%
Portuguese	0	0.00%, see rank	0.20%	0.46%
Russian	104	2.48%, see rank	1.15%	0.97%
Scotch-Irish	63	1.50%, see rank	1.37%	1.07%
Scottish	157	3.74%, see rank	2.69%	1.81%
Subsaharan African	17	0.40%, see rank	0.64%	0.93%
Swedish	166	3.95%, see rank	2.64%	1.34%
Swiss	0	0.00%, see rank	0.48%	0.31%
Ukrainian	0	0.00%, see rank	0.25%	0.31%
American	186	4.43%, see rank	4.88%	6.72%
Welsh	19	0.45%, see rank	0.93%	0.60%

ACS 2006-2010 data

3,549 (91.07%) out of the total population of 3,897 reported first ancestry.

	Niwot, CO	% of the Total Population	Colorado	U.S.
Arab	28	0.72%, see rank	0.33%	0.50%
Czech	74	1.90%, see rank	0.78%	0.53%
Danish	140	3.59%, see rank	0.95%	0.48%
Dutch	106	2.72%, see rank	1.98%	1.63%
English	511	13.11%, see rank	11.90%	9.02%
French	184	4.72%, see rank	3.96%	3.77%
German	1,031	26.46%, see rank	22.99%	16.51%
Greek	62	1.59%, see rank	0.40%	0.44%
Hungarian	33	0.85%, see rank	0.43%	0.51%
Irish	511	13.11%, see rank	12.87%	11.76%
Italian	205	5.26%, see rank	5.18%	5.78%
Norwegian	177	4.54%, see rank	2.34%	1.51%
Polish	231	5.93%, see rank	2.54%	3.24%
Portuguese	0	0.00%, see rank	0.22%	0.47%
Russian	105	2.69%, see rank	1.23%	1.01%
Scotch-Irish	99	2.54%, see rank	2.21%	1.72%
Scottish	136	3.49%, see rank	2.86%	1.92%
Subsaharan African	10	0.26%, see rank	0.55%	0.91%
Swedish	183	4.70%, see rank	2.81%	1.41%
Swiss	24	0.62%, see rank	0.52%	0.33%
Ukrainian	0	0.00%, see rank	0.27%	0.31%
American	224	5.75%, see rank	4.46%	6.28%
Welsh	0	0.00%, see rank	0.96%	0.63%

ACS 2005-2009 data

3,745 (92.45%) out of the total population of 4,051 reported first ancestry.

	Niwot, CO	% of the Total Population	Colorado	U.S.
Arab	0	0.00%, see rank	0.33%	0.50%
Czech	61	1.51%, see rank	0.80%	0.54%
Danish	198	4.89%, see rank	0.99%	0.49%
Dutch	55	1.36%, see rank	2.06%	1.68%
English	619	15.28%, see rank	12.26%	9.29%
French	182	4.49%, see rank	4.07%	3.90%
German	1,208	29.82%, see rank	23.49%	16.89%
Greek	55	1.36%, see rank	0.42%	0.45%
Hungarian	31	0.77%, see rank	0.45%	0.52%
Irish	524	12.94%, see rank	13.00%	12.01%
Italian	203	5.01%, see rank	5.20%	5.91%
Norwegian	210	5.18%, see rank	2.40%	1.55%
Polish	242	5.97%, see rank	2.56%	3.32%
Portuguese	0	0.00%, see rank	0.22%	0.48%
Russian	116	2.86%, see rank	1.28%	1.04%
Scotch-Irish	59	1.46%, see rank	2.31%	1.77%
Scottish	192	4.74%, see rank	2.90%	1.97%
Subsaharan African	16	0.39%, see rank	0.55%	0.88%
Swedish	155	3.83%, see rank	2.84%	1.45%
Swiss	45	1.11%, see rank	0.50%	0.34%
Ukrainian	0	0.00%, see rank	0.27%	0.32%
American	140	3.46%, see rank	4.64%	6.43%
Welsh	9	0.22%, see rank	0.99%	0.65%

US Census 2000 data

3,533 (84.93%) out of the total population of 4,160 reported first ancestry.

	Niwot, CO	% of the Total Population	Colorado	U.S.
Arab	0	0.00%, see rank	0.24%	0.36%
Czech	27	0.65%, see rank	0.37%	0.27%
Danish	45	1.08%, see rank	0.61%	0.30%
Dutch	62	1.49%, see rank	1.12%	0.91%
English	530	12.74%, see rank	7.68%	5.91%
French	101	2.43%, see rank	2.24%	2.39%
German	831	19.98%, see rank	15.70%	10.81%
Greek	5	0.12%, see rank	0.28%	0.34%
Hungarian	28	0.67%, see rank	0.27%	0.32%
Irish	427	10.26%, see rank	7.36%	6.85%
Italian	183	4.40%, see rank	3.69%	4.59%
Norwegian	51	1.23%, see rank	1.83%	1.15%
Polish	136	3.27%, see rank	1.56%	2.24%
Portuguese	0	0.00%, see rank	0.11%	0.33%
Russian	63	1.51%, see rank	0.69%	0.68%
Scotch-Irish	58	1.39%, see rank	1.52%	1.17%
Scottish	109	2.62%, see rank	1.70%	1.12%
Subsaharan African	0	0.00%, see rank	0.38%	0.61%
Swedish	90	2.16%, see rank	1.72%	0.87%
Swiss	16	0.38%, see rank	0.28%	0.19%
Ukrainian	38	0.91%, see rank	0.19%	0.24%
American	278	6.68%, see rank	5.15%	7.33%
Welsh	12	0.29%, see rank	0.49%	0.31%

* 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.