Hays County, TX ZIP Codes

8 ZIP codes cover all or part of Hays County, Texas: 78666, 78640, 78610, 78737, 78620, 78676, 78619 and 78652. The Census Bureau counts 268,638 residents in the county, with a median household income of $89,097 and a median home value of $399,800. Median household income ranges from $54,737 in 78666 to $183,393 in 78619. Its largest communities include San Marcos, Kyle, Canyon Lake, Buda and Dripping Springs.

Hays County (Census county figures)

MeasureCensus figure
Residents268,638
Households99,849
Median household income$89,097
Median home value$399,800
Median age34.1
Median rent$1,495

All 8 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)292,118
Households (sum of ZIP codes)107,652
Median household income, range across ZIP codes$54,737 (78666) to $183,393 (78619)
Household-weighted average of ZIP medians (an approximation, not a true median)$98,005
Homeowners65.8%
Households with kids under 1832.8%
Moved in the past year17.7%
Carrier routes in EDDM2GO's route library156 routes, 131,261 homes (8 of 8 ZIP codes)

Top facts

Every ZIP code in Hays County

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
78666San Marcos88,58333,949$54,737$306,70038.1%20.7%28.8%4343,04078% of its land
78640Kyle77,53127,375$90,075$330,40071.0%39.8%14.0%3435,53584% of its land
78610Buda48,31917,640$119,698$408,00078.8%38.4%16.8%2324,16671% of its land
78737Austin27,0239,145$168,920$765,00087.7%46.6%7.6%159,77871% of its land
78620Dripping Springs22,8608,276$153,477$676,50085.9%40.8%14.2%1911,47385% of its land
78676Wimberley15,8227,005$87,344$511,60078.7%21.7%8.7%137,38192% of its land
78619Driftwood6,6932,393$183,393$810,60095.6%35.9%3.9%52,561100% of its land
78652Manchaca5,2871,869$133,368$528,10087.1%33.2%7.6%43,29744% of its land

A ZIP code is listed for Hays County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.

Cities and communities

Metro maps

Rankings

Price a mailing to Hays County ZIP codes

EDDM guides

Pick carrier routes on the EDDM route map

Frequently asked questions

What ZIP codes are in Hays County, TX?
78666, 78640, 78610, 78737, 78620, 78676, 78619 and 78652. Some cross the county line; the table shows each ZIP's share of land in the county.
What is the population of Hays County?
268,638 residents in 99,849 households (ACS 5-year estimates, 2020–2024).
What is the median household income in Hays County?
$89,097 for the county as a whole. Its ZIP codes range from $54,737 (78666) to $183,393 (78619).
Which Hays County ZIP code has the highest median household income?
78619, at $183,393, among ZIP codes with at least 1,000 residents. See the full ranking of Hays County ZIP codes by income.
How many carrier routes and mailboxes are in Hays County?
For the 8 of 8 ZIP codes in EDDM2GO's stored route library: 156 carrier routes reaching 131,261 residential and 5,941 business mailboxes.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.