Mason, OH ZIP Codes
One ZIP code serves Mason, Ohio: 45040. Together they are home to 59,518 residents in 22,000 households. That is more than the 35,509 people counted inside Mason city limits, because these ZIP codes reach past its boundary.
Mason city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 35,509 |
| Households | 13,502 |
| Median household income | $125,401 |
| Median home value | $426,200 |
| Median age | 42.4 |
| Median rent | $1,760 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 59,518 |
| Households (sum of ZIP codes) | 22,000 |
| Median household income, range across ZIP codes | $133,240 (45040) to $133,240 (45040) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $133,240 |
| Homeowners | 77.7% |
| Households with kids under 18 | 39.7% |
| Moved in the past year | 11.4% |
| Carrier routes in EDDM2GO's route library | 36 routes, 22,511 homes (1 of 1 ZIP codes) |
Every ZIP code in Mason
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 45040 | Mason | 59,518 | 22,000 | $133,240 | $440,000 | 77.7% | 39.7% | 11.4% | 36 | 24,000 | 62% of its land; mailing city |
A ZIP code is listed for Mason when at least 10% of its land lies inside Mason city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mason. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mason.
Counties
- Warren County — 18 ZIP codes
Nearby cities sharing these ZIP codes
- Landen — 2 ZIP codes
Price a mailing to Mason ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mason, OH?
- 45040. A ZIP code is listed for Mason when at least 10% of its land lies inside Mason city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mason.
- What is the population of Mason, OH?
- The Census Bureau counts 35,509 residents inside Mason city limits (ACS 2020–2024). The 1 ZIP code that serve Mason hold 59,518 residents in all.
- What is the median household income in Mason, OH?
- $125,401 inside Mason city limits, per the Census Bureau. Across its ZIP codes the medians run from $133,240 to $133,240.
- How many carrier routes and mailboxes are in Mason, OH?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 36 carrier routes reaching 22,511 residential and 1,488 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.