| ZIP Codes: | 26 ZIP Codes (21 Standard, 5 PO Box, 0 Unique) [See All] |
| Area Codes: | 281 / 346 / 713 / 832 / 936 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:14:00 PM |
| Population: | 671,730 [See All] |
| FIPS: | 48339 |
| CBSA: | Houston-Pasadena-The Woodlands, TX |
| Land Area: | 1,064 sq mi |
| Water Area: | 35 sq mi |
| Coordinates: | 30.2503, -95.4911 |
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671,730 residents live across 26 ZIPs covering 1,064 sq mi, served by 10 distinct USPS-recognized cities.
Population moved from 475,061 to 671,730 from 2014 to 2024 — a +41.4% change. 20 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 77382 (Spring, $162,384 median) and poorest ZIP 77301 (Conroe, $66,475) are 11.0 miles apart — a 2.4× income gap across local geography.
Median home values vary 3.3× across this county — from $174,100 in 77306 (Conroe) to $566,500 in 77382 (Spring).
Density varies 18× across the county — from 180 people/sq mi in 77378 (Willis) to 3,274 in 77382 (Spring).
Most of the decade's growth concentrated around Conroe — top growth ZIPs averaged +104.1% over the past ten years ( 77384 , 77316 and 77304 ).
Educational attainment ranges from 13.1% bachelor's+ in 77306 (Conroe) to 72.9% in 77382 (Spring) — the breadth of educational profiles across the area.
Within Texas, this is the #12 most populous of 254 counties and ranks #14 for median household income with the #11 fastest decade growth .
On the national stage, Montgomery County is and #26 for decade growth .
Weighted by population, the typical household earns about $103,110 across the county — reflecting what a typical resident sees, not a simple ZIP average.
39.2% of adults age 25+ hold a bachelor's degree or higher (172,331 of 439,912 reporting). The most-educated ZIPs cluster around Spring.
21 Standard delivery, 5 PO Box only, 0 single-entity Unique ZIPs serve this county.
2 ZIPs in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
Montgomery County grew 41.4% over the past decade — concentrated in 5 high-growth ZIPs:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 77386 | Spring | Standard | 69,980 | $132,469 | 40.2 | 56.6% |
| 77365 | Porter | Standard | 46,418 | $95,702 | 42.5 | 77.3% |
| 77354 | Magnolia | Standard | 44,900 | $112,504 | 74.7 | 30.0% |
| 77304 | Conroe | Standard | 44,225 | $80,425 | 41.5 | 81.1% |
| 77382 | Spring | Standard | 38,986 | $162,384 | 11.9 | 4.6% |
| 77301 | Conroe | Standard | 37,769 | $66,475 | 20.1 | 18.8% |
| 77357 | New Caney | Standard | 37,592 | $76,050 | 67.3 | 80.7% |
| 77381 | Spring | Standard | 36,139 | $143,565 | 12.8 | -0.7% |
| 77316 | Montgomery | Standard | 34,694 | $124,055 | 129.8 | 115.0% |
| 77355 | Magnolia | Standard | 32,847 | $102,066 | 60.1 | 27.0% |
| 77356 | Montgomery | Standard | 32,583 | $106,804 | 146.2 | 31.1% |
| 77380 | Spring | Standard | 31,369 | $88,562 | 12.7 | 20.2% |
| 77303 | Conroe | Standard | 28,854 | $75,348 | 61.2 | 54.8% |
| 77385 | Conroe | Standard | 28,156 | $117,118 | 22.1 | 31.0% |
| 77384 | Conroe | Standard | 26,781 | $91,667 | 18.7 | 116.1% |
| 77302 | Conroe | Standard | 21,546 | $84,673 | 53.1 | 17.3% |
| 77318 | Willis | Standard | 20,792 | $92,415 | 50.9 | 53.0% |
| 77306 | Conroe | Standard | 18,086 | $76,257 | 42.7 | 59.2% |
| 77378 | Willis | Standard | 17,629 | $71,143 | 98.0 | 27.7% |
| 77372 | Splendora | Standard | 14,367 | $79,085 | 47.0 | 21.1% |
| 77362 | Pinehurst | Standard | 8,017 | $86,852 | 11.0 | 77.5% |
| 77387 | Spring | PO Box | — | — | 0.0 | — |
| 77393 | Spring | PO Box | — | — | 0.0 | — |
| 77353 | Magnolia | PO Box | — | — | 0.0 | — |
| 77333 | Dobbin | PO Box | — | — | 0.0 | — |
| 77305 | Conroe | PO Box | — | — | 0.0 | — |