Residential delivery area · Texas
ZIP Code 78638: Kingsbury, TX
ZIP code 78638 uses the postal name Kingsbury, Texas and lies mostly in Guadalupe County (98% of its land) with the rest in Gonzales County (Census 2020 ZIP-county file). About 2,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $69,250 (Census Bureau, ACS 2020-2024). By Census place, 2% of its land lies in Kingsbury, and under 1% in smaller places; 97% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Kingsbury · its only residential ZIP
- County
- Guadalupe County (98%); Gonzales County (2%)
- Census places
- Kingsbury
- Metro area
- San Antonio-New Braunfels, TX
- House districts
- TX-15 (98%), TX-27 (2%) 119th Congress, by share of land
- State
- Texas
- Time zone
- Central
- Land area
- 118.1 sq mi · 18 people per sq mi
Where is ZIP code 78638?
78638 centers on 29.660°, -97.785° and covers 118.1 square miles of land plus 0.4 of water. It borders 8 ZIP codes: 78661, 78670, 78622, 78648, 78655, 78155, 78666, 78629.
The map draws ZIP code areas only. For the streets inside 78638, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 78638 compare with the rest of Guadalupe County?
| Measure | 78638 | In Guadalupe County | In TX |
|---|---|---|---|
| People (ACS 2020-2024) | 2,135 | 11th of 13 | 1,260th of 1,990 |
| Median household income | $69k | not ranked | not ranked |
| Median home value | $317k | not ranked | not ranked |
78638's median household income is not ranked: its 90% margin of error (±$21,182) is more than a quarter of the figure ($69,250); 78638's median home value is not ranked: its 90% margin of error (±$87,706) is more than a quarter of the figure ($317,400). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 24% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 78638?
The 2020 Census counted 2,381 people in 78638; the ACS, which samples households over 2020-2024, estimates 2,135. Between the 2010 and 2020 censuses its population grew 18.8% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 2,135±429 (90% margin)
- 2020 Census count
- 2,381+18.8% since 2010 (2,005)
- Households
- 706
- Median age
- 45.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 78638?
Of the 2,135 people the ACS estimates in 78638, 22.2% are under 18 and 20.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (67.5%), then Hispanic or Latino (28.3%).
- Under 1822.2%
- 18 to 6456.9%
- 65 and older20.9%
- White, not Hispanic67.5%
- Hispanic or Latino28.3%
- Other or two or more4.1%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 78638 earn?
Median household income is $69,250 (ACS 2020-2024). It is not measurably different from 2015-2019 ($71,072 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $69,250±$21,182
- Income per person
- $40,200
- Below the poverty line
- 8.4%
- Unemployed (of the labor force)
- 6.0%
- Adults 25+ with a bachelor's degree
- 23.5%
- Adjusted gross income per tax return, 2022
- $88,3571,120 returns; wages 62% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 78638?
- Median home value (owners' estimate)
- $317,400
- Median gross rent
- $1,135
- Homes owned by their occupants
- 79.3%
- Housing units
- 819
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 78638?
31 business establishments had a location in this ZIP code in 2023, 11 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction13
- Other services (except public administration)3
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 78638?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78661 | Prairie Lea | 835 | $83k | 4.6 mi |
| 78670 | Staples | 130 | $79k | 8.2 mi |
| 78622 | Fentress | 331 | – | 8.5 mi |
| 78648 | Luling | 7,863 | $58k | 9.1 mi |
| 78655 | Martindale | 3,730 | $56k | 11.2 mi |
| 78155 | Seguin | 55,600 | $71k | 12.4 mi |
| 78666 | San Marcos | 88,583 | $55k | 19.5 mi |
| 78629 | Gonzales | 12,740 | $60k | 23.8 mi |
| 78658 | Ottine | 94 | – | 10.7 mi (near) |
| 78122 | Leesville | 338 | – | 14.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.