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Plant hardiness zone 9A

ZIP codes in USDA plant hardiness zone 9A. Population, income, and housing from US5 published metrics.

Zone
9A
ZIP codes
2,042
Population
22,746,497
Median household income (avg.)
$70,574
Average home value
$303,665
All hardiness zones Opportunity zones ZIP lists ZIP rankings

What is USDA zone 9A?

Zone 9A 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 2,042 indexable ZIP codes in this band, covering about 22,746,497 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 9A, 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 9A

ZIP City County State Population Income Home value
98133 Shoreline King County WA 52,620 $92,371 $719,100
85138 Maricopa Pinal County AZ 52,342 $93,609 $342,900
98103 Seattle King County WA 51,988 $127,372 $1,012,900
78247 San Antonio Bexar County TX 51,979 $89,184 $256,400
98034 Kirkland King County WA 51,836 $128,974 $875,200
29464 Mount Pleasant Charleston County SC 51,758 $107,215 $672,400
78258 San Antonio Bexar County TX 51,672 $116,133 $446,700
78744 Austin Travis County TX 51,069 $78,474 $307,000
78758 Austin Travis County TX 50,592 $69,019 $419,300
89131 Las Vegas Clark County NV 50,578 $114,373 $498,600
78704 Austin Travis County TX 50,479 $97,160 $862,000
97206 Portland Multnomah County OR 50,258 $94,233 $480,500
97223 Tigard Washington County OR 50,226 $108,040 $577,600
29910 Bluffton Beaufort County SC 50,173 $96,122 $420,200
32304 Tallahassee Leon County FL 50,080 $30,823 $147,000
32303 Tallahassee Leon County FL 49,915 $63,123 $204,900
98118 Seattle King County WA 49,560 $109,085 $746,400
89103 Spring Valley Clark County NV 49,546 $48,311 $273,800
93635 Los Banos Merced County CA 49,232 $70,666 $423,900
98105 Seattle King County WA 49,229 $78,691 $1,261,100
78108 Cibolo Guadalupe County TX 48,458 $117,304 $307,300
70769 Prairieville Ascension Parish LA 48,074 $114,707 $295,200
70737 Gonzales Ascension Parish LA 47,971 $80,758 $252,600
78233 San Antonio Bexar County TX 47,659 $73,729 $203,300
78610 Buda Hays County TX 46,685 $110,417 $379,300
94928 Rohnert Park Sonoma County CA 46,463 $96,622 $634,700
93446 El Paso de Robles (Paso Robles) San Luis Obispo County CA 45,859 $94,512 $661,400
95403 Santa Rosa Sonoma County CA 45,570 $94,480 $651,900
78741 Austin Travis County TX 45,274 $66,434 $376,500
70816 Baton Rouge East Baton Rouge Parish LA 45,207 $65,894 $232,300
77471 Rosenberg Fort Bend County TX 45,078 $71,018 $235,000
78626 Georgetown Williamson County TX 45,020 $94,967 $358,500
89149 Las Vegas Clark County NV 45,009 $99,085 $494,900
78759 Austin Travis County TX 44,882 $102,799 $634,400
78628 Georgetown Williamson County TX 44,821 $117,198 $467,700
89139 Enterprise Clark County NV 44,501 $96,044 $449,400
29466 Mount Pleasant Charleston County SC 44,387 $130,546 $659,300
97202 Portland Multnomah County OR 44,107 $100,353 $684,800
78227 San Antonio Bexar County TX 44,091 $48,049 $151,300
85746 Drexel Heights Pima County AZ 44,030 $68,506 $225,200
98204 Everett Snohomish County WA 43,961 $66,592 $386,300
98125 Seattle King County WA 43,807 $96,725 $844,500
29414 Charleston Charleston County SC 43,717 $91,976 $380,600
32526 Bellview Escambia County FL 43,627 $71,651 $230,400
78634 Hutto Williamson County TX 43,466 $111,227 $334,200
78201 San Antonio Bexar County TX 43,426 $46,129 $187,400
78209 San Antonio Bexar County TX 43,363 $84,180 $497,500
32566 Navarre Santa Rosa County FL 43,166 $99,501 $361,000
89178 Enterprise Clark County NV 43,155 $104,985 $451,800
32514 Ferry Pass Escambia County FL 43,072 $66,484 $241,300

Frequently asked questions

What does zone 9A mean?

Zone 9A 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 9A; 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.