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2020 Census Population (adj Elec. §21003)
| Name | Count | Percent |
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| Total Population (POP) | 475,880 | 100.00% |
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| POP Hispanic or Latino | 160,194 | 33.66% |
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| POP Not Hispanic or Latino (NH) | 315,686 | 66.34% |
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| POP NH Population of one race | 292,149 | 61.39% |
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| POP NH White alone | 232,099 | 48.77% |
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| POP NH Black or African American alone | 9,663 | 2.03% |
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| POP NH Asian alone | 42,328 | 8.89% |
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| POP NH American Indian and Alaska Native alone | 3,614 | 0.76% |
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| POP NH Native Hawaiian and Other Pacific Islander alone | 1,624 | 0.34% |
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| POP NH Some Other Race alone | 2,821 | 0.59% |
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| POP NH Population of two or more races | 23,537 | 4.95% |
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2020 Census Housing Occupancy Status
| Name | Count | Percent |
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| Total Housing Units | 191,901 | 100.00% |
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| Occupied | 173,669 | 90.50% |
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| Vacant | 18,232 | 9.50% |
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2020 Census Group Quarters Population (adj Elec. §21003)
| Name | Count | Percent |
|---|
| Total Group Quarters Population: | 14,876 | 100.00% |
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| Institutionalized population: | 3,996 | 26.86% |
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| Correctional facilities for adults | 681 | 4.58% |
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| Juvenile facilities | 61 | 0.41% |
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| Nursing facilities/Skilled-nursing facilities | 3,066 | 20.61% |
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| Other institutional facilities | 188 | 1.26% |
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| Noninstitutionalized population: | 10,880 | 73.14% |
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| College/University student housing | 7,296 | 49.05% |
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| Military quarters | 0 | 0.00% |
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| Other noninstitutional facilities | 3,584 | 24.09% |
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Counties In District
| Name | Count | Percent |
|---|
| Colusa | 21,898 | 100.00% |
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| Lake | 68,402 | 100.00% |
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| Napa | 138,299 | 100.00% |
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| Sonoma | 30,361 | 6.20% |
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| Yolo | 216,922 | 100.00% |
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Places In District
| Name | Count | Percent |
|---|
| COLUSA: Arbuckle(U) | 3,494 | 100.00% |
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| COLUSA: College City(U) | 295 | 100.00% |
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| COLUSA: Colusa(C) | 6,430 | 100.00% |
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| COLUSA: Grimes(U) | 299 | 100.00% |
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| COLUSA: Lodoga(U) | 185 | 100.00% |
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| COLUSA: Maxwell(U) | 1,068 | 100.00% |
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| COLUSA: Princeton(U) | 309 | 100.00% |
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| COLUSA: Stonyford(U) | 133 | 100.00% |
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| COLUSA: Williams(C) | 5,550 | 100.00% |
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| COLUSA: Remainder of Colusa(R) | 4,135 | 100.00% |
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| LAKE: Clearlake(C) | 16,817 | 100.00% |
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| LAKE: Clearlake Oaks(U) | 2,570 | 100.00% |
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| LAKE: Clearlake Riviera(U) | 3,418 | 100.00% |
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| LAKE: Cobb(U) | 1,296 | 100.00% |
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| LAKE: Hidden Valley Lake(U) | 6,248 | 100.00% |
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| LAKE: Kelseyville(U) | 3,391 | 100.00% |
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| LAKE: Lakeport(C) | 5,046 | 100.00% |
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| LAKE: Lower Lake(U) | 1,280 | 100.00% |
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| LAKE: Lucerne(U) | 3,286 | 100.00% |
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| LAKE: Middletown(U) | 1,115 | 100.00% |
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| LAKE: Nice(U) | 2,942 | 100.00% |
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| LAKE: North Lakeport(U) | 3,558 | 100.00% |
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| LAKE: Soda Bay(U) | 1,167 | 100.00% |
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| LAKE: Spring Valley(U) | 976 | 100.00% |
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| LAKE: Upper Lake(U) | 1,099 | 100.00% |
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| LAKE: Remainder of Lake(R) | 14,193 | 100.00% |
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| NAPA: American Canyon(C) | 21,881 | 100.00% |
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| NAPA: Angwin(U) | 2,638 | 100.00% |
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| NAPA: Calistoga(C) | 5,237 | 100.00% |
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| NAPA: Deer Park(U) | 1,296 | 100.00% |
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| NAPA: Moskowite Corner(U) | 239 | 100.00% |
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| NAPA: Napa(C) | 79,414 | 100.00% |
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| NAPA: Oakville(U) | 50 | 100.00% |
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| NAPA: Rutherford(U) | 115 | 100.00% |
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| NAPA: St. Helena(C) | 5,436 | 100.00% |
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| NAPA: Silverado Resort(U) | 950 | 100.00% |
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| NAPA: Yountville(C) | 3,442 | 100.00% |
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| NAPA: Remainder of Napa(R) | 17,601 | 100.00% |
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| SONOMA: Boyes Hot Springs(U) | 6,227 | 100.00% |
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| SONOMA: Eldridge(U) | 1,315 | 100.00% |
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| SONOMA: El Verano(U) | 3,878 | 100.00% |
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| SONOMA: Fetters Hot Springs-Agua Caliente(U) | 4,235 | 100.00% |
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| SONOMA: Sonoma(C) | 10,761 | 100.00% |
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| SONOMA: Remainder of Sonoma(R) | 3,945 | 4.69% |
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| YOLO: Brooks(U) | 31 | 100.00% |
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| YOLO: Clarksburg(U) | 402 | 100.00% |
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| YOLO: Davis(C) | 66,948 | 100.00% |
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| YOLO: Dunnigan(U) | 1,387 | 100.00% |
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| YOLO: El Macero(U) | 1,074 | 100.00% |
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| YOLO: Esparto(U) | 3,579 | 100.00% |
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| YOLO: Guinda(U) | 245 | 100.00% |
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| YOLO: Knights Landing(U) | 1,124 | 100.00% |
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| YOLO: Madison(U) | 589 | 100.00% |
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| YOLO: Monument Hills(U) | 1,703 | 100.00% |
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| YOLO: Rumsey(U) | 91 | 100.00% |
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| YOLO: Tancred(U) | 89 | 100.00% |
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| YOLO: University of California-Davis(U) | 8,530 | 100.00% |
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| YOLO: West Sacramento(C) | 54,071 | 100.00% |
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| YOLO: Winters(C) | 7,132 | 100.00% |
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| YOLO: Woodland(C) | 61,233 | 100.00% |
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| YOLO: Yolo(U) | 427 | 100.00% |
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| YOLO: Remainder of Yolo(R) | 8,267 | 100.00% |
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