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Idaho · Fremont

83420 ZIP Code

83420 is associated with Ashton, Idaho. The page shows the county, timezone, nearby ZIPs and links to the state hub for a nearby city generator.

ZIP details

ZIP code
83420
City
Ashton
State
Idaho (ID)
County
Fremont
Timezone
America/Boise
State sales tax
Varies by state
Open map Idaho hub

Nearby ZIP codes

83421Chester, ID83422Driggs, ID83423Dubois, ID83424Felt, ID83415Idaho Falls, ID83425Hamer, ID83427Iona, ID83428Irwin, ID

Questions about 83420

What city is ZIP code 83420 in?+
83420 is associated with Ashton, Idaho in the bundled dataset. ZIP areas can cross city and county lines, so use the city and county fields together.
What county is 83420 in?+
Fremont. County boundaries and postal areas are not the same thing; a ZIP can serve addresses in more than one county.
What timezone is 83420 in?+
America/Boise. This is the IANA timezone name for the city associated with the ZIP.
Is 83420 a real ZIP code?+
It appears in the public city dataset bundled with this site. That confirms the format and city association, not that a specific street, mailbox, or resident exists.
All ZIP codesValidate a full address