Zone
9B
Plant hardiness zone 9B
ZIP codes in USDA plant hardiness zone 9B. Population, income, and housing from US5 published metrics.
ZIP codes
1,918
Population
34,156,501
Median household income (avg.)
$82,262
Average home value
$449,970
What is USDA zone 9B?
Zone 9B is a USDA / PRISM plant hardiness band based on average annual extreme minimum winter temperature. Growers use it to compare winter-cold exposure across regions — it is a climate label, not a planting prescription.
US5 lists 1,918 indexable ZIP codes in this band, covering about 34,156,501 combined ZIP-area residents. The table below is sorted by population; use pagination to browse the full published set.
How to use this zone page
Scan communities inside zone 9B, then open any ZIP for full demographics, climate normals, schools, and nearby amenities. Zone membership comes from the USDA hardiness summary joined to published ZIP profiles.
ZIPs in zone 9B
| ZIP | City | County | State | Population | Income | Home value |
|---|---|---|---|---|---|---|
| 94957 | Ross | Marin County | CA | 2,151 | $250,001 | $2,000,001 |
| 94511 | Bethel Island | Contra Costa County | CA | 2,144 | $78,393 | $549,500 |
| 77255 | — | — | — | 2,141 | $41,534 | $320,700 |
| 92230 | Cabazon | Riverside County | CA | 2,105 | $90,068 | $260,100 |
| 95445 | Anchor Bay | Mendocino County | CA | 2,102 | $93,365 | $664,700 |
| 95201 | — | — | — | 2,101 | $21,058 | — |
| 70562 | — | — | — | 2,091 | $33,133 | $75,100 |
| 77226 | — | — | — | 2,087 | $39,153 | $192,800 |
| 95641 | Walnut Grove | Sacramento County | CA | 2,086 | $76,667 | $293,300 |
| 95903 | Beale AFB | Yuba County | CA | 2,072 | $57,356 | $392,900 |
| 94581 | — | — | — | 2,049 | $83,281 | $880,700 |
| 77482 | Van Vleck | Matagorda County | TX | 2,047 | $63,581 | $147,900 |
| 94514 | Byron | Contra Costa County | CA | 2,044 | $97,946 | $852,900 |
| 78389 | Skidmore | Bee County | TX | 2,036 | $37,168 | $56,700 |
| 70630 | Hayes | Cameron Parish | LA | 2,027 | $71,510 | $188,800 |
| 77227 | — | — | — | 2,017 | $82,560 | $523,800 |
| 77256 | — | — | — | 2,017 | $82,560 | $523,800 |
| 95468 | Point Arena | Mendocino County | CA | 1,992 | $104,429 | $451,400 |
| 92068 | — | — | — | 1,979 | $115,250 | $604,500 |
| 70184 | — | — | — | 1,971 | $65,219 | $284,200 |
| 36528 | Dauphin Island | Mobile County | AL | 1,944 | $64,615 | $387,400 |
| 78406 | Corpus Christi | Nueces County | TX | 1,934 | $51,646 | — |
| 78393 | Woodsboro | Refugio County | TX | 1,932 | $60,642 | $93,900 |
| 77430 | Damon | Brazoria County | TX | 1,916 | $94,583 | $329,700 |
| 32236 | — | — | — | 1,914 | $34,347 | $102,400 |
| 92281 | Westmorland | Imperial County | CA | 1,904 | $35,882 | $222,100 |
| 70177 | — | — | — | 1,880 | $34,694 | $451,900 |
| 77046 | Houston | Harris County | TX | 1,873 | $115,516 | $276,400 |
| 95551 | Loleta | Humboldt County | CA | 1,870 | $73,472 | $469,800 |
| 70372 | Labadieville | Assumption Parish | LA | 1,846 | $39,542 | $143,800 |
| 95441 | Geyserville | Sonoma County | CA | 1,842 | $128,375 | $1,277,800 |
| 95918 | Loma Rica | Yuba County | CA | 1,842 | $55,795 | $572,600 |
| 95449 | Hopland | Mendocino County | CA | 1,828 | $80,149 | $597,200 |
| 96099 | — | — | — | 1,818 | $26,471 | $231,200 |
| 70187 | — | — | — | 1,811 | $22,956 | $209,800 |
| 78379 | Riviera | Kleberg County | TX | 1,800 | $72,625 | $109,200 |
| 77622 | Hamshire | Jefferson County | TX | 1,799 | $104,444 | $223,400 |
| 34423 | — | — | — | 1,798 | $69,722 | $459,700 |
| 95690 | Walnut Grove | Sacramento County | CA | 1,793 | $88,173 | $710,600 |
| 97465 | Port Orford | Curry County | OR | 1,777 | $39,718 | $292,100 |
| 95813 | — | — | — | 1,775 | $78,527 | $475,300 |
| 95851 | — | — | — | 1,775 | $78,527 | $475,300 |
| 95852 | — | — | — | 1,775 | $78,527 | $475,300 |
| 95853 | — | — | — | 1,775 | $78,527 | $475,300 |
| 93275 | — | — | — | 1,772 | $55,982 | — |
| 95524 | Indianola | Humboldt County | CA | 1,770 | $82,697 | $585,100 |
| 33574 | St. Leo | Pasco County | FL | 1,760 | — | — |
| 70514 | Baldwin | St. Mary Parish | LA | 1,757 | $30,761 | $127,500 |
| 91916 | Descanso | San Diego County | CA | 1,757 | $110,833 | $615,700 |
| 94020 | La Honda | San Mateo County | CA | 1,745 | $250,001 | $1,158,100 |
Frequently asked questions
What does zone 9B mean?
Zone 9B is a USDA plant hardiness band based on average annual extreme minimum winter temperature. It helps compare winter-cold exposure across places; it is not a planting prescription.
Why is the table sorted by population?
Population ordering surfaces larger communities first. The zone total counts all published ZIPs in band 9B; page through the table to browse beyond the first page.
Is a hardiness zone the same as a climate normal?
Hardiness zones summarize winter extreme cold. ZIP pages on US5 also show precipitation, snow, and FEMA risk context separately.