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ZIP code 51003
Alton, IA · Sioux County
About ZIP code 51003
- ZIP code 51003 is in Alton, Sioux County, Iowa.
- About 1,938 people live in it, which is 13.8 people per square mile.
- Time zone: Central Standard Time.
- The middle of the ZIP code is at 42.984, -95.986.
A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.
Alton, IA
ZIP code 51003 is the post office name for Alton, IA. 1,459 people live in Alton. Typical household income is $98,036. A typical home costs $218,900.
- Stronger than most towns on: Short commute, Long, healthy lives and Cost of living.
- Weaker than most towns on: Airport access, Property taxes and Public transit.
Nearby ZIP codes
- 51041 Orange City · 7,324 people
- 51022 Granville · 960 people
- 51238 Hospers · 1,502 people
- 51036 Maurice · 445 people
- 51045 Oyens · 66 people
- 51050 Remsen · 2,962 people
- 51250 Sioux Center · 9,970 people
- 51234 Boyden · 1,172 people
ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.