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Thousand Oaks, CA Historical First Ancestry Data

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ACS 2010-2014 data

114,680 (89.51%) out of the total population of 128,126 reported first ancestry.

	Thousand Oaks, CA	% of the Total Population	California	U.S.
Arab	1,206	0.94%, see rank	0.72%	0.56%
Czech	659	0.51%, see rank	0.22%	0.47%
Danish	1,268	0.99%, see rank	0.46%	0.42%
Dutch	2,309	1.80%, see rank	0.99%	1.40%
English	14,397	11.24%, see rank	5.94%	8.02%
French	4,784	3.73%, see rank	2.15%	3.34%
German	19,850	15.49%, see rank	8.51%	15.03%
Greek	710	0.55%, see rank	0.35%	0.41%
Hungarian	1,447	1.13%, see rank	0.32%	0.46%
Irish	13,747	10.73%, see rank	6.69%	10.80%
Italian	9,718	7.58%, see rank	3.97%	5.52%
Norwegian	2,664	2.08%, see rank	1.02%	1.42%
Polish	4,238	3.31%, see rank	1.32%	3.01%
Portuguese	513	0.40%, see rank	0.91%	0.44%
Russian	4,375	3.41%, see rank	1.13%	0.92%
Scotch-Irish	1,035	0.81%, see rank	0.61%	0.99%
Scottish	3,450	2.69%, see rank	1.34%	1.72%
Subsaharan African	398	0.31%, see rank	0.69%	0.95%
Swedish	2,439	1.90%, see rank	1.09%	1.27%
Swiss	431	0.34%, see rank	0.27%	0.30%
Ukrainian	558	0.44%, see rank	0.27%	0.31%
American	5,000	3.90%, see rank	3.22%	7.12%
Welsh	744	0.58%, see rank	0.43%	0.57%

ACS 2008-2012 data

116,052 (91.69%) out of the total population of 126,570 reported first ancestry.

	Thousand Oaks, CA	% of the Total Population	California	U.S.
Arab	1,047	0.83%, see rank	0.70%	0.53%
Czech	673	0.53%, see rank	0.24%	0.50%
Danish	1,630	1.29%, see rank	0.50%	0.45%
Dutch	1,965	1.55%, see rank	1.08%	1.51%
English	14,697	11.61%, see rank	6.39%	8.53%
French	4,711	3.72%, see rank	2.28%	3.54%
German	18,831	14.88%, see rank	9.10%	15.79%
Greek	1,094	0.86%, see rank	0.35%	0.42%
Hungarian	1,393	1.10%, see rank	0.34%	0.48%
Irish	14,859	11.74%, see rank	7.13%	11.36%
Italian	10,040	7.93%, see rank	4.08%	5.66%
Norwegian	2,903	2.29%, see rank	1.06%	1.46%
Polish	4,138	3.27%, see rank	1.35%	3.13%
Portuguese	584	0.46%, see rank	0.96%	0.46%
Russian	4,618	3.65%, see rank	1.18%	0.97%
Scotch-Irish	1,127	0.89%, see rank	0.67%	1.07%
Scottish	3,380	2.67%, see rank	1.43%	1.81%
Subsaharan African	322	0.25%, see rank	0.72%	0.93%
Swedish	3,051	2.41%, see rank	1.16%	1.34%
Swiss	325	0.26%, see rank	0.28%	0.31%
Ukrainian	612	0.48%, see rank	0.26%	0.31%
American	5,203	4.11%, see rank	2.78%	6.72%
Welsh	956	0.76%, see rank	0.46%	0.60%

ACS 2006-2010 data

116,167 (93.18%) out of the total population of 124,671 reported first ancestry.

	Thousand Oaks, CA	% of the Total Population	California	U.S.
Arab	1,169	0.94%, see rank	0.66%	0.50%
Czech	661	0.53%, see rank	0.26%	0.53%
Danish	1,405	1.13%, see rank	0.53%	0.48%
Dutch	1,995	1.60%, see rank	1.15%	1.63%
English	14,138	11.34%, see rank	6.77%	9.02%
French	4,728	3.79%, see rank	2.44%	3.77%
German	18,504	14.84%, see rank	9.60%	16.51%
Greek	929	0.75%, see rank	0.38%	0.44%
Hungarian	1,124	0.90%, see rank	0.36%	0.51%
Irish	15,400	12.35%, see rank	7.50%	11.76%
Italian	10,438	8.37%, see rank	4.21%	5.78%
Norwegian	2,592	2.08%, see rank	1.10%	1.51%
Polish	4,985	4.00%, see rank	1.41%	3.24%
Portuguese	647	0.52%, see rank	1.02%	0.47%
Russian	4,469	3.58%, see rank	1.22%	1.01%
Scotch-Irish	2,095	1.68%, see rank	1.19%	1.72%
Scottish	3,283	2.63%, see rank	1.54%	1.92%
Subsaharan African	301	0.24%, see rank	0.72%	0.91%
Swedish	3,155	2.53%, see rank	1.25%	1.41%
Swiss	279	0.22%, see rank	0.31%	0.33%
Ukrainian	544	0.44%, see rank	0.26%	0.31%
American	5,973	4.79%, see rank	2.43%	6.28%
Welsh	1,003	0.80%, see rank	0.49%	0.63%

ACS 2005-2009 data

114,943 (93.71%) out of the total population of 122,652 reported first ancestry.

	Thousand Oaks, CA	% of the Total Population	California	U.S.
Arab	877	0.72%, see rank	0.66%	0.50%
Czech	634	0.52%, see rank	0.27%	0.54%
Danish	1,440	1.17%, see rank	0.55%	0.49%
Dutch	1,706	1.39%, see rank	1.19%	1.68%
English	15,956	13.01%, see rank	7.02%	9.29%
French	4,854	3.96%, see rank	2.56%	3.90%
German	19,111	15.58%, see rank	9.93%	16.89%
Greek	873	0.71%, see rank	0.38%	0.45%
Hungarian	1,228	1.00%, see rank	0.37%	0.52%
Irish	15,837	12.91%, see rank	7.79%	12.01%
Italian	9,660	7.88%, see rank	4.33%	5.91%
Norwegian	2,823	2.30%, see rank	1.14%	1.55%
Polish	4,584	3.74%, see rank	1.45%	3.32%
Portuguese	582	0.47%, see rank	1.05%	0.48%
Russian	4,639	3.78%, see rank	1.25%	1.04%
Scotch-Irish	2,446	1.99%, see rank	1.23%	1.77%
Scottish	3,166	2.58%, see rank	1.61%	1.97%
Subsaharan African	279	0.23%, see rank	0.71%	0.88%
Swedish	3,383	2.76%, see rank	1.28%	1.45%
Swiss	331	0.27%, see rank	0.32%	0.34%
Ukrainian	496	0.40%, see rank	0.27%	0.32%
American	6,396	5.21%, see rank	2.66%	6.43%
Welsh	967	0.79%, see rank	0.52%	0.65%

US Census 2000 data

101,326 (86.60%) out of the total population of 117,005 reported first ancestry.

	Thousand Oaks, CA	% of the Total Population	California	U.S.
Arab	725	0.62%, see rank	0.50%	0.36%
Czech	300	0.26%, see rank	0.14%	0.27%
Danish	852	0.73%, see rank	0.38%	0.30%
Dutch	1,215	1.04%, see rank	0.71%	0.91%
English	10,655	9.11%, see rank	4.91%	5.91%
French	3,076	2.63%, see rank	1.57%	2.39%
German	12,672	10.83%, see rank	6.45%	10.81%
Greek	402	0.34%, see rank	0.29%	0.34%
Hungarian	681	0.58%, see rank	0.27%	0.32%
Irish	9,583	8.19%, see rank	4.72%	6.85%
Italian	7,442	6.36%, see rank	3.41%	4.59%
Norwegian	2,216	1.89%, see rank	0.92%	1.15%
Polish	3,020	2.58%, see rank	0.95%	2.24%
Portuguese	339	0.29%, see rank	0.75%	0.33%
Russian	2,880	2.46%, see rank	0.90%	0.68%
Scotch-Irish	1,512	1.29%, see rank	0.87%	1.17%
Scottish	1,967	1.68%, see rank	1.00%	1.12%
Subsaharan African	200	0.17%, see rank	0.51%	0.61%
Swedish	1,854	1.58%, see rank	0.86%	0.87%
Swiss	404	0.35%, see rank	0.21%	0.19%
Ukrainian	299	0.26%, see rank	0.20%	0.24%
American	5,796	4.95%, see rank	3.37%	7.33%
Welsh	530	0.45%, see rank	0.27%	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.