St. Martin, OH ZIP Codes
2 ZIP codes serve St. Martin, Ohio: 45142 and 45118. Together they are home to 7,890 residents in 2,951 households. That is more than the 171 people counted inside St. Martin Census-designated place, because these ZIP codes reach past its boundary. Median household income ranges from $66,844 in 45142 to $97,963 in 45118.
St. Martin Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 171 |
| Households | 80 |
| Median household income | $55,962 |
| Median home value | $237,500 |
| Median age | 56.9 |
| Median rent | not published |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 7,890 |
| Households (sum of ZIP codes) | 2,951 |
| Median household income, range across ZIP codes | $66,844 (45142) to $97,963 (45118) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $81,586 |
| Homeowners | 82.3% |
| Households with kids under 18 | 30.7% |
| Moved in the past year | 7.8% |
| Carrier routes in EDDM2GO's route library | 6 routes, 2,867 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in St. Martin: 45118 ($97,963)
- Most residents: 45142 (4,187 people)
- Highest homeownership: 45118 (82.8% own their home)
- Most households with kids: 45142 (32.5% of households)
- Most new movers: 45142 (8.6% moved in last year)
- Youngest median age: 45142 (37.0 years)
- Highest median home value: 45118 ($255,800)
Every ZIP code in St. Martin
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 45142 | Lynchburg | 4,187 | 1,553 | $66,844 | $167,100 | 81.8% | 32.5% | 8.6% | 3 | 1,268 | 3% of its land |
| 45118 | Fayetteville | 3,703 | 1,398 | $97,963 | $255,800 | 82.8% | 28.7% | 7.0% | 3 | 1,638 | 1% of its land |
A ZIP code is listed for St. Martin when at least 10% of its land lies inside the St. Martin Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is St. Martin. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside St. Martin.
Counties
- Highland County — 12 ZIP codes
- Brown County — 16 ZIP codes
Price a mailing to St. Martin ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. Martin, OH?
- 45142 and 45118. A ZIP code is listed for St.
- What is the population of St. Martin, OH?
- The Census Bureau counts 171 residents inside St. Martin Census-designated place (ACS 2020–2024). The 2 ZIP codes that serve St. Martin hold 7,890 residents in all.
- What is the median household income in St. Martin, OH?
- $55,962 inside St. Martin Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $66,844 to $97,963.
- Which St. Martin ZIP code has the highest median household income?
- 45118, at $97,963, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in St. Martin, OH?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 6 carrier routes reaching 2,867 residential and 42 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.