Le Mars, IA ZIP code
The ZIP code for Le Mars, Iowa is 51031. It is in Plymouth County.
- Population in these ZIPs
- 12,808
- Avg. median income
- $76,500population-weighted
- Typical home value
- $278,500population-weighted
- Metro area
- Le Mars, IA
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Le Mars, IA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 51031 | 12,808 | $76,525 | $278,500 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Le Mars
- Brunsville 4 mi
- Oyens 7 mi
- Merrill 10 mi
- Maurice 12 mi
- Remsen 12 mi
- Hinton 13 mi
- Ireton 13 mi
- Orange City 16 mi
- Alton 16 mi
- Kingsley 17 mi
- Chatsworth 18 mi
- Akron 18 mi
Frequently asked questions
What is the ZIP code for Le Mars, IA?
The ZIP code for Le Mars, IA is 51031.
What county is Le Mars, Iowa in?
Le Mars ZIP codes are in Plymouth County.