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US ZIP Code Profile

ZIP Code 78619
Driftwood, Texas

ZIP code 78619 is in Driftwood, located in Hays County, Texas, within the Austin-Round Rock metro area. Its 2020 Census population was 5,819. The estimated median adjusted gross income per tax return is $137,903, and about 37% of filers report $200,000 or more.

2020 Population
5,819
Census ZCTA
County
Hays
FIPS 48209
Median income (est.)
$137,903
IRS SOI 2022
Land Area
38.566 mi²
+ 0 mi² water

01Location & Geography

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

Primary CityDriftwood, TX
CountyHays County (FIPS 48209)
StateTexas (FIPS 48)
Metro Area (MSA)Austin-Round Rock, TX Metro Area (12420)
Census Region / DivisionSouth Region · West South Central Division
Coordinates30.112213, -98.033264
Land / Water Area38.566 mi² land · 0 mi² water

02Income & Economics

Distribution of the 2,930 individual tax returns filed in 78619 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
18.1%
$25K–$50K
10.9%
$50K–$75K
7.8%
$75K–$100K
5.1%
$100K–$200K
21.2%
$200K+
36.9%
The $200,000+ bracket accounts for 81% of 78619's total adjusted gross income, from 37% of returns — a concentration that drives the gap between the median ($137,903) 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 78619's IRS income metrics, 2020–2022.

Median income (2021→2022)
$137,903
▲ 3.6%
Filers earning $200K+
36.9%
▲ 1.1 pt
Total filers
2,930
▲ 5.8%
GET /zipc/v2/zipcodes/78619/soi?year=… $113K 2020 $133K 2021 $138K 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 78619 ZCTA.

2000
1,585
 
2010
3,026
▲ +90.9%
2020
5,819
▲ +92.3%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number482600
City AliasesDriftwood

06Frequently Asked Questions

What county is ZIP code 78619 in?

ZIP code 78619 is in Hays County, Texas (county FIPS code 48209).

What city is ZIP code 78619?

The primary USPS city for 78619 is Driftwood, TX.

What metro area (MSA) is 78619 in?

78619 is part of the Austin-Round Rock, TX Metro Area (MSA code 12420).

What is the population of ZIP code 78619?

The 2020 Census population of 78619 was 5,819 residents.

What is the median income in ZIP code 78619?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 78619 is about $137,903, with around 37% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.