Montgomery County, Texas ZIP codes
27 ZIP codes are in Montgomery County, plus 5 that cross in from neighboring counties. It's part of the Houston-Pasadena-The Woodlands, TX metro area.
- ZIP codes
- 27
- Population in these ZIPs
- 673,113
- Avg. median income
- $103,100population-weighted
- Cities & towns
- 11
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 |
|---|---|---|---|---|
| 77301 | Conroe | 37,769 | $66,475 | $235,400 |
| 77302 | Conroe | 21,546 | $84,673 | $324,300 |
| 77303 | Conroe | 28,854 | $75,348 | $262,500 |
| 77304 | Conroe | 44,225 | $80,425 | $329,200 |
| 77305 PO Box | Conroe | — | — | — |
| 77306 | Conroe | 18,086 | $76,257 | $223,300 |
| 77316 | Montgomery | 34,694 | $124,055 | $415,500 |
| 77318 | Willis | 20,792 | $92,415 | $330,500 |
| 77333 PO Box | Dobbin | — | — | — |
| 77353 PO Box | Magnolia | — | — | — |
| 77354 | Magnolia | 44,900 | $112,504 | $375,900 |
| 77355 | Magnolia | 32,847 | $102,066 | $362,600 |
| 77356 | Montgomery | 32,583 | $106,804 | $363,100 |
| 77357 | New Caney | 37,592 | $76,050 | $259,100 |
| 77362 | Pinehurst | 8,017 | $86,852 | $388,800 |
| 77365 | Porter | 46,418 | $95,702 | $305,400 |
| 77372 | Splendora | 14,367 | $79,085 | $237,500 |
| 77378 | Willis | 17,629 | $71,143 | $242,600 |
| 77380 | Spring | 31,369 | $88,562 | $390,000 |
| 77381 | Spring | 36,139 | $143,565 | $564,400 |
| 77382 | Spring | 38,986 | $162,384 | $585,500 |
| 77384 | Conroe | 26,781 | $91,667 | $405,100 |
| 77385 | Conroe | 28,156 | $117,118 | $347,600 |
| 77386 | Spring | 69,980 | $132,469 | $367,700 |
| 77387 PO Box | Spring | — | — | — |
| 77393 PO Box | Spring | — | — | — |
| 77873 | Richards | 1,383 | $80,938 | $425,400 |
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 |
|---|---|---|---|---|---|
| 77327 | Cleveland | Liberty County | 42,685 | $62,219 | $207,100 |
| 77328 | Cleveland | San Jacinto County | 17,208 | $62,428 | $252,300 |
| 77339 | Kingwood | Harris County | 44,538 | $84,102 | $292,500 |
| 77358 | New Waverly | Walker County | 5,087 | $60,424 | $387,300 |
| 77447 | Hockley | Harris County | 25,231 | $116,925 | $300,600 |
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, Texas?
27 ZIP codes are mainly in Montgomery County, and 5 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 Conroe, Dobbin, Magnolia, Montgomery, New Caney, Pinehurst, Porter, Richards, Splendora, Spring and Willis.
What metro area is Montgomery County in?
Montgomery County is part of the Houston-Pasadena-The Woodlands, TX metropolitan statistical area.