Residential delivery area · Texas
ZIP Code 78643: Llano, TX
ZIP code 78643 uses the postal name Llano, Texas and lies entirely in Llano County (Census 2020 ZIP-county file). About 7,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $68,365 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Llano (under 1%) and Sunrise Beach Village (under 1%); 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Llano · its only residential ZIP
- County
- Llano County
- Census places
- Llano (under 1%); Sunrise Beach Village (under 1%)
- House district
- TX-11 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 712.3 sq mi · 10 people per sq mi
Where is ZIP code 78643?
78643 centers on 30.680°, -98.715° and covers 712.3 square miles of land plus 5.5 of water. It borders 12 ZIP codes: 76885, 76831, 78639, 78609, 78607, 78675, 78672, 76832, 78657, 78624 and more.
The map draws ZIP code areas only. For the streets inside 78643, 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 78643 compare with the rest of Llano County?
| Measure | 78643 | In Llano County | In TX |
|---|---|---|---|
| People (ACS 2020-2024) | 7,088 | 4th of 10 | 921st of 1,990 |
| Median household income | $68k | 3rd of 5 | 677th of 1,172 |
| Median home value | $363k | 2nd of 4 | 250th of 1,172 |
Its median household income is higher than in 44% of U.S. residential ZIP codes, and it is denser than 17% of all 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 78643?
The 2020 Census counted 6,453 people in 78643; the ACS, which samples households over 2020-2024, estimates 7,088. Between the 2010 and 2020 censuses its population grew 5.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 7,088
- 2020 Census count
- 6,453+5.1% since 2010 (6,139)
- Households
- 3,188
- Median age
- 54.5
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 78643?
Of the 7,088 people the ACS estimates in 78643, 18.5% are under 18 and 35.1% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.9%).
- Under 1818.5%
- 18 to 6446.5%
- 65 and older35.1%
- White, not Hispanic88.9%
- Hispanic or Latino5.6%
- Other or two or more4.3%
- Asian, not Hispanic0.8%
- Black, not Hispanic0.4%
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 78643 earn?
Median household income is $68,365 (ACS 2020-2024), the 3rd highest of the 5 ranked ZIP codes in Llano County. It is not measurably different from 2015-2019 ($65,754 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $68,365±$14,010
- Income per person
- $44,187
- Below the poverty line
- 9.9%
- Unemployed (of the labor force)
- 4.0%
- Adults 25+ with a bachelor's degree
- 33.4%
- Adjusted gross income per tax return, 2022
- $90,6503,220 returns; wages 50% 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 78643?
FHFA's house price index for 78643, built from repeat sales and appraisals of the same homes, rose 121% from 2015 to 2025 and rose 60% from 2020 to 2025, and moved −3.0% in 2025.
- Median home value (owners' estimate)
- $362,600
- Median gross rent
- $1,077
- Homes owned by their occupants
- 74.7%
- Housing units
- 4,233
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 78643?
212 business establishments had a location in this ZIP code in 2023, 30 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade35
- Construction34
- Accommodation and food services24
- Health care and social assistance20
- Other services (except public administration)20
- Professional, scientific, and technical services19
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 78643?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 76885 | Valley Spring | 142 | – | 15.1 mi |
| 76831 | Castell | 0 | – | 15.4 mi |
| 78639 | Kingsland | 8,719 | $58k | 15.5 mi |
| 78609 | Buchanan Dam | 1,983 | $64k | 16.3 mi |
| 78607 | Bluffton | 118 | $59k | 16.6 mi |
| 78675 | Willow City | 102 | $79k | 16.9 mi |
| 78672 | Tow | 570 | $53k | 19.4 mi |
| 76832 | Cherokee | 544 | $46k | 19.7 mi |
| 78657 | Horseshoe Bay | 7,591 | $92k | 22.4 mi |
| 78624 | Fredericksburg | 23,741 | $75k | 28.4 mi |
| 78663 | Round Mountain | 503 | $168k | 30.1 mi |
| 78636 | Johnson City | 4,134 | $73k | 30.4 mi |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.