ZIP code 77991
Where is ZIP code 77991?
Vanderbilt, Texas
Jackson County · PO Box only ZIP code
ZIP code 77991 belongs to Vanderbilt, Texas in Jackson County. 77991 is a PO Box only ZIP code: it is used for post office boxes at the Vanderbilt post office, not for street addresses. It is in the Central Time zone and uses area code 361. About 440 people live in the 77991 area. The closest ZIP codes are 77969 (La Salle, 3.9 mi southwest), 77971 (Lolita, 7.9 mi east) and 77970 (La Ward, 8.9 mi east).
| ZIP code | 77991 |
|---|---|
| Type | PO Box only (no street delivery) |
| Status | Active |
| City | Vanderbilt |
| State | Texas (TX) |
| County | Jackson County |
| Time zone | Central Time · now |
| Area code | 361 |
| Coordinates | 28.8068, -96.6042 map |
| 3-digit prefix | 779 |
Population and income in 77991
| Population | 440 · lower than 84% of Texas ZIP codes |
|---|---|
| People per square mile | 41 · lower than 60% of Texas ZIP codes |
| Median age | 14.8 years · lower than 99% of Texas ZIP codes |
| Men / women | 32% / 68% |
| Income per person | $25,991 |
| Below the poverty line | 0.0% |
| Bachelor’s degree or higher | 40% of adults 25+ |
| Median home value | $107,600 · lower than 86% of Texas ZIP codes |
| Housing units | 94 |
| Households | 94 (4.68 people on average) |
| Owners / renters | 79% / 21% |
| Land area | 10.64 sq mi (plus 1.26 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 77991. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 77991
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 77969 | La Salle, TX | 3.9 mi SW | PO Box only |
| 77971 | Lolita, TX | 7.9 mi E | Standard |
| 77970 | La Ward, TX | 8.9 mi E | PO Box only |
| 77978 | Point Comfort, TX | 10.3 mi S | PO Box only |
| 77957 | Edna, TX | 10.4 mi N | Standard |
| 77968 | Inez, TX | 13.5 mi NW | Standard |
| 77979 | Port Lavaca, TX | 14.3 mi S | Standard |
| 77977 | Placedo, TX | 15.6 mi SW | PO Box only |
| 77961 | Francitas, TX | 16.5 mi E | PO Box only |
| 77962 | Ganado, TX | 16.6 mi N | Standard |
| 77988 | Telferner, TX | 17.6 mi W | PO Box only |
| 77951 | Bloomington, TX | 20.7 mi SW | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 77991 or measure the distance to another ZIP code.
How to address mail to 77991
PO BOX 123
VANDERBILT TX 77991
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (77991-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 77991?
- 77991 is a Vanderbilt, Texas ZIP code.
- What county is 77991 in?
- ZIP code 77991 is in Jackson County, Texas.
- What time zone is ZIP code 77991 in?
- 77991 is in the Central Time zone (America/Chicago).
- What area code is 77991?
- Phone numbers in ZIP code 77991 use area code 361.
- What is the population of ZIP code 77991?
- About 440 people live in ZIP code 77991, according to the Census Bureau’s American Community Survey (2020–2024).
- Can I use 77991 for a street address?
- No. 77991 is only for PO Boxes. Street addresses in Vanderbilt use another ZIP code.
- What ZIP codes are near 77991?
- The nearest ZIP codes to 77991 are 77969 (La Salle, 3.9 miles), 77971 (Lolita, 7.9 miles), 77970 (La Ward, 8.9 miles) and 77978 (Point Comfort, 10.3 miles).