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US ZIP Code Profile

ZIP Code 78954
Round Top, Texas

ZIP code 78954 is in Round Top, located in Fayette County, Texas. Its 2020 Census population was 1,144. The estimated median adjusted gross income per tax return is $75,000, and about 19% of filers report $200,000 or more.

2020 Population
1,144
Census ZCTA
County
Fayette
FIPS 48149
Median income (est.)
$75,000
IRS SOI 2022
Land Area
75.178 mi²
+ 0.643 mi² water

01Location & Geography

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

Primary CityRound Top, TX
CountyFayette County (FIPS 48149)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.043016, -96.69919
Land / Water Area75.178 mi² land · 0.643 mi² water

02Income & Economics

Distribution of the 620 individual tax returns filed in 78954 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
22.6%
$25K–$50K
16.1%
$50K–$75K
11.3%
$75K–$100K
8.1%
$100K–$200K
22.6%
$200K+
19.4%
The $200,000+ bracket accounts for 70% of 78954's total adjusted gross income, from 19% of returns — a concentration that drives the gap between the median ($75,000) 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 78954's IRS income metrics, 2020–2022.

Median income (2021→2022)
$75,000
▲ 2.9%
Filers earning $200K+
19.4%
▲ 1.8 pt
Total filers
620
▲ 8.8%
GET /zipc/v2/zipcodes/78954/soi?year=… $59K 2020 $73K 2021 $75K 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 78954 ZCTA.

2000
854
 
2010
1,071
▲ +25.4%
2020
1,144
▲ +6.8%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number487810
City AliasesRound Top, Walhalla

06Frequently Asked Questions

What county is ZIP code 78954 in?

ZIP code 78954 is in Fayette County, Texas (county FIPS code 48149).

What city is ZIP code 78954?

The primary USPS city for 78954 is Round Top, TX.

What is the population of ZIP code 78954?

The 2020 Census population of 78954 was 1,144 residents.

What is the median income in ZIP code 78954?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78954 is about $75,000, with around 19% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.