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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
81601 Glenwood Springs Garfield County CO 16,268 $103,632 $726,000
03055 Milford Hillsborough County NH 16,258 $94,514 $363,500
44905 Mansfield Richland County OH 16,254 $55,716 $111,000
03842 Hampton Rockingham County NH 16,180 $94,433 $491,600
80305 Boulder Boulder County CO 16,101 $120,933 $985,700
61520 Canton Fulton County IL 16,098 $56,618 $116,200
46637 South Bend St. Joseph County IN 16,079 $72,401 $192,000
13031 Fairmount Onondaga County NY 16,076 $92,687 $207,100
48827 Eaton Rapids Eaton County MI 16,070 $76,230 $206,600
62568 Taylorville Christian County IL 16,035 $57,194 $119,500
48451 Linden Genesee County MI 15,993 $95,616 $268,600
43074 Sunbury Delaware County OH 15,948 $109,541 $396,600
80030 Westminster Adams County CO 15,945 $61,964 $422,300
03087 — Rockingham County NH 15,922 $189,450 $684,700
43023 Granville South Licking County OH 15,772 $136,127 $428,900
49321 Comstock Park Kent County MI 15,759 $74,691 $244,300
16002 Nixon Butler County PA 15,722 $82,676 $256,200
03063 Nashua Hillsborough County NH 15,630 $106,924 $371,700
68124 Omaha Douglas County NE 15,630 $96,341 $277,200
68503 Lincoln Lancaster County NE 15,625 $50,886 $158,900
64024 Excelsior Springs Clay County MO 15,587 $80,781 $185,200
46408 Gary Lake County IN 15,571 $47,063 $96,200
60070 Prospect Heights Cook County IL 15,549 $91,210 $343,100
13219 Fairmount Onondaga County NY 15,546 $81,414 $173,400
46755 Kendallville Noble County IN 15,528 $66,034 $160,300
45891 Van Wert Van Wert County OH 15,522 $62,944 $143,100
01510 Clinton Worcester County MA 15,430 $93,849 $348,000
61603 Peoria Peoria County IL 15,430 $40,405 $73,100
49080 Plainwell Allegan County MI 15,410 $75,250 $234,400
60417 Crete Will County IL 15,408 $93,346 $225,900
01007 Belchertown Hampshire County MA 15,406 $99,056 $350,400
45320 Eaton Preble County OH 15,402 $68,740 $167,900
48059 Lakeport St. Clair County MI 15,371 $78,841 $199,200
62629 Chatham Sangamon County IL 15,369 $106,373 $232,000
47960 Monticello White County IN 15,313 $61,087 $179,300
16127 Grove City Mercer County PA 15,295 $69,842 $199,500
60433 Joliet Will County IL 15,293 $60,987 $167,800
16057 West Liberty Butler County PA 15,264 $56,285 $242,200
46714 Bluffton Wells County IN 15,257 $63,468 $164,500
01060 Northampton Hampshire County MA 15,237 $75,077 $427,100
16105 New Castle Lawrence County PA 15,195 $67,256 $175,100
44485 Warren Trumbull County OH 15,194 $33,720 $73,600
44907 Mansfield Richland County OH 15,157 $44,033 $130,400
48623 Freeland Saginaw County MI 15,126 $96,371 $230,300
16301 Sugarcreek Venango County PA 15,067 $57,368 $84,800
44420 Girard Trumbull County OH 15,066 $52,542 $115,000
03824 Durham Strafford County NH 15,054 $126,658 $469,900
46259 Indianapolis city (balance) Marion County IN 15,049 $129,615 $304,800
60064 North Chicago Lake County IL 15,047 $49,256 $139,900
46055 McCordsville Hancock County IN 15,027 $116,811 $326,300

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.