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Plant hardiness zone 6A

ZIP codes in USDA plant hardiness zone 6A. Population, income, and housing from US5 published metrics.

Zone
6A
ZIP codes
4,855
Population
35,646,945
Median household income (avg.)
$75,369
Average home value
$228,792
All hardiness zones Opportunity zones ZIP lists ZIP rankings

What is USDA zone 6A?

Zone 6A 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 4,855 indexable ZIP codes in this band, covering about 35,646,945 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 6A, 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 6A

ZIP City County State Population Income Home value
48302 Pontiac Oakland County MI 17,346 $175,698 $624,200
16365 North Warren Warren County PA 17,303 $57,694 $118,300
01913 Amesbury Town Essex County MA 17,277 $100,599 $475,400
80905 Colorado Springs El Paso County CO 17,269 $64,496 $349,500
44820 Bucyrus Crawford County OH 17,265 $56,942 $134,100
48342 Pontiac Oakland County MI 17,227 $33,750 $90,600
60403 Crest Hill Will County IL 17,226 $71,413 $223,000
60304 Oak Park Cook County IL 17,218 $132,841 $470,100
80236 Denver Denver County CO 17,207 $83,543 $495,800
86005 Flagstaff Coconino County AZ 17,165 $81,250 $556,400
80018 Aurora Arapahoe County CO 17,129 $127,390 $558,800
46011 Anderson Madison County IN 17,115 $77,618 $168,300
16125 Greenville Mercer County PA 17,088 $56,851 $125,700
45502 Springfield Clark County OH 17,076 $87,378 $225,500
46774 New Haven Allen County IN 17,066 $70,758 $169,200
44906 Mansfield Richland County OH 17,059 $51,358 $127,700
12118 Mechanicville Saratoga County NY 17,056 $91,182 $315,100
80903 Colorado Springs El Paso County CO 17,045 $59,292 $420,000
48323 Orchard Lake Village Oakland County MI 17,043 $139,418 $467,000
80925 Colorado Springs El Paso County CO 17,016 $107,955 $441,100
12054 — Albany County NY 16,988 $128,684 $334,800
46814 Fort Wayne Allen County IN 16,906 $143,245 $383,000
48130 Dexter Washtenaw County MI 16,849 $131,875 $453,100
13206 Syracuse Onondaga County NY 16,848 $60,314 $130,300
46404 Gary Lake County IN 16,846 $39,188 $88,300
45344 New Carlisle Clark County OH 16,841 $71,627 $159,600
01501 — Worcester County MA 16,780 $101,929 $363,400
60455 Bridgeview Cook County IL 16,765 $65,342 $234,400
45504 Springfield Clark County OH 16,654 $67,334 $167,700
44833 Galion Morrow County OH 16,641 $57,234 $127,700
48324 Orchard Lake Village Oakland County MI 16,631 $148,750 $407,500
48855 Howell Livingston County MI 16,625 $104,552 $317,200
80216 Denver Denver County CO 16,610 $86,869 $392,500
60546 Riverside Cook County IL 16,582 $109,933 $377,600
16148 Hermitage Mercer County PA 16,563 $72,680 $186,000
60478 Country Club Hills Cook County IL 16,549 $76,936 $180,900
60154 Westchester Cook County IL 16,524 $103,561 $297,400
49008 Kalamazoo Kalamazoo County MI 16,488 $67,339 $202,400
68507 Lincoln Lancaster County NE 16,481 $71,194 $215,000
46992 Wabash Wabash County IN 16,475 $65,500 $141,800
44410 Cortland Trumbull County OH 16,467 $63,158 $174,600
44505 Youngstown Mahoning County OH 16,449 $36,480 $82,100
15501 Somerset Somerset County PA 16,447 $55,797 $162,300
81623 El Jebel Pitkin County CO 16,349 $98,549 $835,000
46122 Danville Hendricks County IN 16,343 $94,290 $276,800
47904 Lafayette Tippecanoe County IN 16,340 $46,841 $118,700
44062 Middlefield Geauga County OH 16,335 $75,681 $213,600
64060 Kearney Clay County MO 16,291 $107,626 $322,100
46807 Fort Wayne Allen County IN 16,285 $56,341 $133,500
84335 Benson Cache County UT 16,278 $90,774 $403,800

Frequently asked questions

What does zone 6A mean?

Zone 6A 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 6A; 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.