Zip Code 43342 — Prospect, OH
43342 is a ZIP Code associated with Prospect, OH, located within Marion. 43342 ranks #2 out of 8 ZIP codes in Marion County by population (and #600 out of 1,232 in OH). The area supports an estimated population of 3,836 residents across Data Pending housing units, with a population density of 34.7 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (40.475330, -83.179940)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 43342 |
| Primary City | Prospect |
| State / Province | OH |
| County | Marion |
| Total Population | 3,836 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 34.7 people/sq mi |
| Timezone | America/New_York |
How 43342 Compares
| Metric | ZIP 43342 | Marion County | OH State Average |
|---|
| Population | 3,836 | 65,284 (Total) | 11,810,293 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 34.7 /sq mi | -- | -- |
| County Pop Rank | #2 of 8 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →