ZIP code 78140
Where is ZIP code 78140?
Nixon, Texas
Gonzales County · Standard ZIP code
ZIP code 78140 belongs to Nixon, Texas in Gonzales County. 78140 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Central Time zone and uses area code 830. About 3,474 people live in the 78140 area, where the median household income is $50,250. The closest ZIP codes are 78143 (Pandora, 5.9 mi southwest), 78122 (Leesville, 6.5 mi north) and 78159 (Smiley, 8.2 mi east).
| ZIP code | 78140 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Nixon |
| State | Texas (TX) |
| County | Gonzales County |
| Time zone | Central Time · now |
| Area code | 830 |
| Coordinates | 29.3016, -97.7529 map |
| 3-digit prefix | 781 |
Population and income in 78140
| Population | 3,474 · lower than 58% of Texas ZIP codes |
|---|---|
| People per square mile | 20 · lower than 69% of Texas ZIP codes |
| Median age | 36.2 years · lower than 62% of Texas ZIP codes |
| Men / women | 49% / 51% |
| Median household income | $50,250 · lower than 85% of Texas ZIP codes |
| Income per person | $27,798 |
| Below the poverty line | 12% |
| Bachelor’s degree or higher | 6.2% of adults 25+ |
| Median home value | $85,200 · lower than 93% of Texas ZIP codes |
| Median rent | $845 a month |
| Housing units | 1,410 |
| Households | 1,278 (2.71 people on average) |
| Owners / renters | 74% / 27% |
| Land area | 175.04 sq mi (plus 0.74 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 78140. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 78140
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 78143 | Pandora, TX | 5.9 mi SW | PO Box only |
| 78122 | Leesville, TX | 6.5 mi N | Standard |
| 78159 | Smiley, TX | 8.2 mi E | Standard |
| 78160 | Stockdale, TX | 12 mi SW | Standard |
| 78677 | Wrightsboro, TX | 12.4 mi NE | Standard |
| 78614 | Cost, TX | 15 mi NE | Standard |
| 78604 | Belmont, TX | 15.9 mi N | PO Box only |
| 78111 | Ecleto, TX | 17.6 mi S | Standard |
| 78116 | Gillett, TX | 18 mi S | Standard |
| 78161 | Sutherland Springs, TX | 18 mi W | Standard |
| 77994 | Westhoff, TX | 19.6 mi SE | Standard |
| 78155 | Seguin, TX | 21.9 mi NW | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 78140 or measure the distance to another ZIP code.
How to address mail to 78140
123 MAIN ST
NIXON TX 78140
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (78140-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 78140?
- 78140 is a Nixon, Texas ZIP code.
- What county is 78140 in?
- ZIP code 78140 is in Gonzales County, Texas.
- What time zone is ZIP code 78140 in?
- 78140 is in the Central Time zone (America/Chicago).
- What area code is 78140?
- Phone numbers in ZIP code 78140 use area code 830.
- What is the population of ZIP code 78140?
- About 3,474 people live in ZIP code 78140, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 78140?
- The median household income in 78140 is $50,250 a year, lower than 85% of Texas ZIP codes.
- What ZIP codes are near 78140?
- The nearest ZIP codes to 78140 are 78143 (Pandora, 5.9 miles), 78122 (Leesville, 6.5 miles), 78159 (Smiley, 8.2 miles) and 78160 (Stockdale, 12 miles).