ZIP Code 51031 — Le Mars, IA

About ZIP 51031

ZIP code 51031 serves Le Mars in Plymouth, Iowa. It centers near 42.7962°, -96.1704° and, by population, qualifies as a small-town or low-density suburban ZIP. Roughly 12,595 people are estimated to live within its boundaries based on the U.S. Census Bureau's American Community Survey 5-Year Estimates (2018–2022).

The median household earns about $75,540 per year here. The typical owner-occupied home is valued near $190,300, and asking rents on the open market sit around $835 per month. Compared to the rest of Iowa, that makes 51031 noticeably pricier than the state average. Looking at the entire state, the average ZIP code reports a median income closer to $64,118 and a median home value of $135,295.

The median resident is around 39.5 years old, and roughly 12.5% of the population holds at least a bachelor's degree. Unemployment estimates from the same Census release put the share of unemployed adults around 1.2% of the total population (the labor-force-only rate is higher, since not every resident is counted as "in the labor force").

Cost of living read

If you're considering a move into 51031, the most useful exercise is to compare the housing math against your current ZIP. Here, a typical home runs $190,300 and a typical rental runs $835 a month. Translate that into your own budget:

• At a 7% 30-year mortgage with 20% down, financing the median home here lands monthly principal & interest near $1,013 — before property tax, insurance, or HOA dues.
• Renting the median unit at $835/mo costs roughly $10,020 per year, or about 13.3% of the local median household income.
• For movers from substantially cheaper or more expensive metros, the home-value gap (+$55,005 versus the state average of $135,295) is often the single biggest line item to plan for.

Who lives here

The age and education profile of a ZIP tells you a lot about what daily life feels like there. With a median age of 39.5 and a population of 12,595, ZIP 51031 reads as a settled, working-age and family-heavy area.

Geography & nearby ZIPs

This ZIP centers at 42.7962, -96.1704. The eight closest neighboring ZIP codes are listed below — useful if you're scoping out the surrounding area, comparing schools, or just want a feel for the broader neighborhood than this one boundary captures.

How to use this profile

Treat ZipLocal Guide as a starting point — never the final word — when you're researching a relocation. The Census ACS data on this page are reliable medians for the ZIP code tabulation area, but they tell you nothing about which side of the freeway you should live on, which streets the local high schoolers actually walk to school, or how the neighborhood has changed since the 2022 estimate window. For those, walk the area, talk to people on the street, and verify your assumptions with a local agent or community group.

If you find this neighborhood interesting, the easiest next step is to view all ZIPs in Le Mars or browse the rest of Iowa.