Montgomery County, Ohio ZIP codes
46 ZIP codes are in Montgomery County, plus 10 that cross in from neighboring counties. It's part of the Dayton-Kettering-Beavercreek, OH metro area.
- ZIP codes
- 46
- Population in these ZIPs
- 507,675
- Avg. median income
- $70,800population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Montgomery County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 45309 | Brookville | 11,876 | $75,409 | $273,700 |
| 45315 | Clayton | 4,905 | $92,333 | $289,800 |
| 45322 | Englewood | 20,884 | $75,349 | $227,400 |
| 45325 | Farmersville | 2,470 | $81,250 | $298,100 |
| 45327 | Germantown | 9,315 | $94,741 | $268,800 |
| 45342 | Miamisburg | 36,152 | $84,907 | $262,400 |
| 45343 PO Box | Miamisburg | — | — | — |
| 45345 | New Lebanon | 6,110 | $80,280 | $193,500 |
| 45354 | Phillipsburg | 553 | $66,625 | $160,500 |
| 45377 | Vandalia | 14,888 | $77,398 | $246,200 |
| 45401 PO Box | Dayton | — | — | — |
| 45402 | Dayton | 9,407 | $48,401 | $75,300 |
| 45403 | Dayton | 13,608 | $38,323 | $100,900 |
| 45404 | Dayton | 9,826 | $38,874 | $99,900 |
| 45405 | Dayton | 18,955 | $43,973 | $90,000 |
| 45406 | Dayton | 19,991 | $41,796 | $92,700 |
| 45409 | Dayton | 15,293 | $87,283 | $249,100 |
| 45410 | Dayton | 14,694 | $46,651 | $129,400 |
| 45412 PO Box | Dayton | — | — | — |
| 45413 PO Box | Dayton | — | — | — |
| 45414 | Dayton | 21,167 | $54,485 | $183,900 |
| 45415 | Dayton | 12,465 | $81,176 | $230,200 |
| 45416 | Dayton | 5,640 | $46,174 | $95,500 |
| 45417 | Dayton | 28,186 | $36,945 | $75,000 |
| 45419 | Dayton | 17,008 | $92,264 | $277,500 |
| 45420 | Dayton | 24,411 | $60,588 | $168,800 |
| 45422 PO Box | Dayton | — | — | — |
| 45423 | Dayton | 0 | — | — |
| 45424 | Dayton | 50,725 | $80,605 | $227,200 |
| 45426 | Dayton | 14,114 | $51,908 | $170,100 |
| 45428 | Dayton | 272 | — | — |
| 45429 | Dayton | 26,347 | $80,210 | $273,600 |
| 45437 PO Box | Dayton | — | — | — |
| 45439 | Dayton | 11,914 | $52,035 | $170,600 |
| 45441 PO Box | Dayton | — | — | — |
| 45448 PO Box | Dayton | — | — | — |
| 45449 | Dayton | 19,066 | $63,800 | $191,500 |
| 45458 | Dayton | 38,712 | $110,150 | $423,700 |
| 45459 | Dayton | 28,553 | $89,592 | $334,200 |
| 45469 | Dayton | 168 | — | — |
| 45470 PO Box | Dayton | — | — | — |
| 45475 PO Box | Dayton | — | — | — |
| 45479 PO Box | Dayton | — | — | — |
| 45481 PO Box | Dayton | — | — | — |
| 45482 PO Box | Dayton | — | — | — |
| 45490 PO Box | Dayton | — | — | — |
ZIP codes partly in Montgomery County
These ZIP codes are mostly in a neighboring county but cover part of Montgomery County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 45005 | Franklin | Warren County | 32,251 | $75,399 | $275,500 |
| 45042 | Middletown | Butler County | 27,652 | $69,520 | $248,300 |
| 45066 | Springboro | Warren County | 27,545 | $131,250 | $431,400 |
| 45344 | New Carlisle | Clark County | 16,979 | $78,471 | $216,300 |
| 45371 | Tipp City | Miami County | 22,865 | $93,599 | $349,700 |
| 45378 | Verona | Preble County | 539 | $73,000 | $149,100 |
| 45381 | West Alexandria | Preble County | 5,626 | $62,263 | $241,400 |
| 45431 | Dayton | Greene County | 27,951 | $83,175 | $255,600 |
| 45432 | Dayton | Greene County | 15,055 | $83,115 | $224,700 |
| 45440 | Dayton | Greene County | 22,358 | $82,383 | $317,500 |
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 and towns in Montgomery County
Nearby counties
Frequently asked questions
How many ZIP codes are in Montgomery County, Ohio?
46 ZIP codes are mainly in Montgomery County, and 10 more ZIP codes from neighboring areas reach partly into it.
What cities are in Montgomery County?
ZIP codes in Montgomery County use the city names Brookville, Clayton, Dayton, Englewood, Farmersville, Germantown, Miamisburg, New Lebanon, Phillipsburg and Vandalia.
What metro area is Montgomery County in?
Montgomery County is part of the Dayton-Kettering-Beavercreek, OH metropolitan statistical area.