Willis, TX ZIP Codes
2 ZIP codes serve Willis, Texas: 77318 and 77378. Together they are home to 38,421 residents in 13,837 households. That is more than the 6,878 people counted inside Willis city limits, because these ZIP codes reach past its boundary. Median household income ranges from $71,143 in 77378 to $92,415 in 77318.
Willis city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 6,878 |
| Households | 2,359 |
| Median household income | $68,632 |
| Median home value | $124,300 |
| Median age | 35.4 |
| Median rent | $1,268 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 38,421 |
| Households (sum of ZIP codes) | 13,837 |
| Median household income, range across ZIP codes | $71,143 (77378) to $92,415 (77318) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $83,308 |
| Homeowners | 78.0% |
| Households with kids under 18 | 32.1% |
| Moved in the past year | 8.5% |
| Carrier routes in EDDM2GO's route library | 27 routes, 20,092 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Willis: 77318 ($92,415)
- Most residents: 77318 (20,792 people)
- Highest homeownership: 77318 (80.7% own their home)
- Most households with kids: 77378 (35.9% of households)
- Most new movers: 77378 (9.1% moved in last year)
- Youngest median age: 77378 (35.1 years)
- Highest median home value: 77318 ($316,900)
Every ZIP code in Willis
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 77318 | Willis | 20,792 | 7,913 | $92,415 | $316,900 | 80.7% | 29.2% | 8.0% | 15 | 11,662 | 3% of its land; mailing city |
| 77378 | Willis | 17,629 | 5,924 | $71,143 | $199,800 | 74.5% | 35.9% | 9.1% | 12 | 9,115 | 4% of its land; mailing city |
A ZIP code is listed for Willis when at least 10% of its land lies inside Willis city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Willis. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Willis.
Counties
- Montgomery County — 24 ZIP codes
Metro maps
- Houston ZIP code map — 238 ZIP codes
Price a mailing to Willis ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Willis, TX?
- 77318 and 77378. A ZIP code is listed for Willis when at least 10% of its land lies inside Willis city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Willis.
- What is the population of Willis, TX?
- The Census Bureau counts 6,878 residents inside Willis city limits (ACS 2020–2024). The 2 ZIP codes that serve Willis hold 38,421 residents in all.
- What is the median household income in Willis, TX?
- $68,632 inside Willis city limits, per the Census Bureau. Across its ZIP codes the medians run from $71,143 to $92,415.
- Which Willis ZIP code has the highest median household income?
- 77318, at $92,415, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Willis, TX?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 27 carrier routes reaching 20,092 residential and 673 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.