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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

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
70461 Slidell St. Tammany Parish LA 33,572 $88,035 $267,100
93422 Atascadero San Luis Obispo County CA 33,512 $89,916 $692,100
95482 Ukiah Mendocino County CA 33,396 $70,063 $473,000
85741 Casas Adobes Pima County AZ 33,332 $71,812 $268,600
70817 Shenandoah East Baton Rouge Parish LA 33,237 $102,878 $288,400
70454 Ponchatoula Tangipahoa Parish LA 33,220 $70,560 $219,500
97203 Portland Multnomah County OR 33,159 $77,619 $468,600
98144 Seattle King County WA 33,048 $94,051 $890,400
32503 Pensacola Escambia County FL 32,975 $67,654 $270,500
78705 Austin Travis County TX 32,937 $30,336 $627,900
77441 Fulshear Fort Bend County TX 32,905 $177,591 $557,300
32507 Warrington Escambia County FL 32,752 $69,802 $267,100
32301 Tallahassee Leon County FL 32,596 $50,412 $211,900
98109 Seattle King County WA 32,552 $130,845 $986,000
29406 North Charleston Charleston County SC 32,482 $50,640 $209,700
97471 Lookingglass Douglas County OR 32,439 $70,765 $326,400
32312 Tallahassee Leon County FL 31,966 $119,664 $406,200
32607 Gainesville Alachua County FL 31,938 $46,517 $297,800
70815 Baton Rouge East Baton Rouge Parish LA 31,924 $55,804 $213,100
77803 Bryan Brazos County TX 31,923 $50,953 $141,000
77316 Conroe Montgomery County TX 31,917 $129,418 $396,500
70601 Lake Charles Calcasieu Parish LA 31,843 $49,545 $164,300
77355 Stagecoach Montgomery County TX 31,727 $101,270 $329,700
85641 Vail Pima County AZ 31,665 $121,647 $372,500
32533 Gonzalez Escambia County FL 31,633 $85,459 $262,500
70592 Youngsville Lafayette Parish LA 31,608 $93,453 $239,000
31601 Valdosta Lowndes County GA 31,495 $34,846 $112,600
89135 Summerlin South Clark County NV 31,432 $115,362 $657,300
32583 East Milton Santa Rosa County FL 31,415 $84,957 $229,700
78754 Austin Travis County TX 31,410 $92,964 $318,900
32221 Jacksonville Duval County FL 31,234 $82,571 $244,500
97267 Oak Grove Clackamas County OR 31,160 $85,178 $489,100
77356 Montgomery Montgomery County TX 31,069 $113,750 $369,200
85629 Sahuarita Pima County AZ 30,989 $106,039 $313,600
78727 Austin Travis County TX 30,894 $107,194 $483,200
31705 Putney Dougherty County GA 30,866 $37,210 $101,900
70403 Hammond Tangipahoa Parish LA 30,835 $50,547 $207,600
77706 Beaumont Jefferson County TX 30,754 $77,644 $238,800
31404 Savannah Chatham County GA 30,749 $49,805 $193,100
32327 Crawfordville Wakulla County FL 30,694 $76,714 $215,500
78211 San Antonio Bexar County TX 30,589 $54,279 $110,200
98037 Lynnwood Snohomish County WA 30,574 $104,357 $683,600
78729 Austin Williamson County TX 30,440 $81,589 $434,500
36303 Dothan Houston County AL 30,388 $53,006 $175,600
97068 West Linn Clackamas County OR 30,254 $145,877 $760,900
70791 Zachary East Baton Rouge Parish LA 30,097 $80,243 $269,800
77904 Victoria Victoria County TX 29,989 $86,821 $237,900
78239 Windcrest Bexar County TX 29,855 $71,455 $215,600
70663 Sulphur Calcasieu Parish LA 29,511 $59,444 $174,300
78724 Austin Travis County TX 29,326 $76,906 $295,400

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.