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US ZIP Code Profile

ZIP Code 78639
Kingsland, Texas

ZIP code 78639 is in Kingsland, located in Llano County, Texas. Its 2020 Census population was 8,365. The estimated median adjusted gross income per tax return is $43,218, and about 7% of filers report $200,000 or more.

2020 Population
8,365
Census ZCTA
County
Llano
FIPS 48299
Median income (est.)
$43,218
IRS SOI 2022
Land Area
43.993 mi²
+ 2.744 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityKingsland, TX
CountyLlano County (FIPS 48299)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.673683, -98.44104
Land / Water Area43.993 mi² land · 2.744 mi² water

02Income & Economics

Distribution of the 3,930 individual tax returns filed in 78639 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
32.6%
$25K–$50K
23.9%
$50K–$75K
14.0%
$75K–$100K
9.2%
$100K–$200K
13.2%
$200K+
7.1%
The $200,000+ bracket accounts for 51% of 78639's total adjusted gross income, from 7% of returns — a concentration that drives the gap between the median ($43,218) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 78639's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,218
▲ 5.5%
Filers earning $200K+
7.1%
▼ 0.5 pt
Total filers
3,930
▼ 0.3%
GET /zipc/v2/zipcodes/78639/soi?year=… $37K 2020 $41K 2021 $43K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 78639 ZCTA.

2000
5,602
 
2010
7,334
▲ +30.9%
2020
8,365
▲ +14.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number484715
City AliasesGranite Shoals Lake Shores, Kingsland, Lakeside Heights

06Frequently Asked Questions

What county is ZIP code 78639 in?

ZIP code 78639 is in Llano County, Texas (county FIPS code 48299).

What city is ZIP code 78639?

The primary USPS city for 78639 is Kingsland, TX.

What is the population of ZIP code 78639?

The 2020 Census population of 78639 was 8,365 residents.

What is the median income in ZIP code 78639?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78639 is about $43,218, with around 7% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.