Postal Codes

78644 ZIP Code

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ZIP code 78644 covers Lockhart, Texas, with a population of about 20,599 and a median household income of $72,155.

Population
20,599114 per square mile
Median age
38.6about the US average
Median household income
$72,1555% below the Texas median
Poverty rate
13.7%1.3 points above the US average
Typical home value
$282,667up 2.4% in five years
Median rent
$1,16213% below the Texas median
Degree or higher
19.1%15.9 points below the US average
Homeownership
71.8%6.8 points above the US average
Time zone
Central UTC-06:00observes daylight saving time
Businesses
404

Where 78644 is

Lockhart, Texas — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population20,599
Median age38.6
Family households69.1%
Born outside the US8.7%
Speaks a language other than English at home33.2%
White (non-Hispanic)39.4%
Black (non-Hispanic)3.7%
Asian (non-Hispanic)1.4%
Hispanic or Latino52%
Veterans8.7%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$72,155
Income per person$30,618
Poverty rate13.7%
Households on SNAP or cash assistance10.4%

Household income distribution

Under $10k4.2%
$10–15k4.4%
$15–20k1.3%
$20–25k2.0%
$25–30k8.0%
$30–35k7.6%
$35–40k4.0%
$40–45k2.2%
$45–50k1.7%
$50–60k6.1%
$60–75k11.7%
$75–100k14.3%
$100–125k11.8%
$125–150k8.4%
$150–200k4.1%
$200k or more8.2%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed9,540
Mean adjusted gross income$66,851
Returns declaring $200,000 or more3.5%
Returns, under $25k28.6%
Returns, $25k–$50k29.1%
Returns, $50k–$75k16.9%
Returns, $75k–$100k9.6%
Returns, $100k–$200k12.3%
Returns, $200k or more3.5%
Housing

American Community Survey 2019–2023 five-year estimates

Median home value$242,900
Median gross rent$1,162
Rent as a share of household income29.2%
Owner-occupied71.8%
Vacant homes7.8%
Median year built1988

What the homes are

Detached house65.6%
Attached house2.7%
2 to 4 units10.1%
5 to 19 units3.4%
20 or more units2%
Mobile home15.8%
Boat, RV or van0.3%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$282,667as of 2026-07
Typical home value, 1 yeardown 5.9%
Typical home value, 5 yearsup 2.4%
Typical home value, 10 yearsup 77.8%
Typical asking rent$1,729as of 2026-07
Typical home value since 2000
200920172026$351,545$116,386

$123,824 in 2009 to $282,667 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate1.3%
Bachelor's degree or higher19.1%
High school diploma or higher86.7%
Works from home11.3%
Drives to work alone79.2%
Takes public transport0%
Commutes 45 minutes or more30.4%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity42% 8.6 pts above the national average of 33.4%
Diagnosed diabetes14.4% 2.4 pts above the national average of 12%
Currently smokes14.2% 1 pts above the national average of 13.2%
High blood pressure35.2% 1.1 pts above the national average of 34.1%
Fair or poor general health25.4% 5.1 pts above the national average of 20.3%
No health insurance (18–64)23.3% 12 pts above the national average of 11.3%
Depression22.2% same as the national average of 21.9%
No leisure-time physical activity32.4% 7 pts above the national average of 25.4%
Arthritis24.6% 0.5 pts below the national average of 25.1%
Binge drinking16.1% same as the national average of 16%
Taking blood pressure medication76.2% 1.5 pts above the national average of 74.7%
Cancer (non-skin)6.6% 1.1 pts below the national average of 7.7%
Current asthma9.8% 0.6 pts below the national average of 10.4%
Coronary heart disease6.4% same as the national average of 6.2%
Routine check-up in past year74.2% 2.5 pts below the national average of 76.7%
Cholesterol screening84.8% 1.1 pts below the national average of 85.9%
Cognitive disability16.6% 1.8 pts above the national average of 14.8%
Colorectal screening57.3% 7 pts below the national average of 64.3%
COPD6.7% same as the national average of 6.6%
Visited a dentist51.7% 9.6 pts below the national average of 61.3%
Any disability34.4% 3.7 pts above the national average of 30.7%
Hearing disability7.3% 0.6 pts above the national average of 6.7%
High cholesterol36.9% 0.7 pts above the national average of 36.2%
Independent living disability9.4% 1 pts above the national average of 8.4%
Mammography use70% 5.9 pts below the national average of 75.9%
Poor mental health (14+ days)17.6% 0.8 pts above the national average of 16.8%
Mobility disability16.6% 2.6 pts above the national average of 14%
Poor physical health (14+ days)15.1% 1.6 pts above the national average of 13.5%
Self-care disability4.7% 0.7 pts above the national average of 4%
Sleeps under 7 hours36.9% 0.5 pts above the national average of 36.4%
Stroke3.6% same as the national average of 3.4%
All natural teeth lost14.3% 1.3 pts above the national average of 13%
Vision disability7.1% 1.5 pts above the national average of 5.6%
Business and employment

Census ZIP Code Business Patterns 2022

Business establishments404
People employed4,192
Annual payroll$175,431,000
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Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 84% of US census tracts
FEMA ratingRelatively Moderate to Relatively High across the 8 census tracts this ZIP code covers
Expected annual loss82.3 out of 100
Community resilience5.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Drought96Relatively High at its worst in this ZIP code
Strong wind92.7Very High at its worst in this ZIP code
Hail92.5Relatively High at its worst in this ZIP code
River flooding92.1Very High at its worst in this ZIP code
Tornado88.9Very High at its worst in this ZIP code
Wildfire86.7Relatively Moderate at its worst in this ZIP code
Lightning80.7Relatively High at its worst in this ZIP code
Winter weather80.6Relatively High at its worst in this ZIP code
Heat wave75.6Relatively High at its worst in this ZIP code
Cold wave66.3Relatively High at its worst in this ZIP code
Hurricane58.1Relatively Low at its worst in this ZIP code
Landslide52.9Very Low at its worst in this ZIP code
Ice storm50.5Relatively Moderate at its worst in this ZIP code
Earthquake9.9Very Low at its worst in this ZIP code
Compared with Texas and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPTexasUnited States
Median household income$72,155$76,292$78,538
Income per person$30,618$39,446$43,289
Poverty rate13.7%13.8%12.4%
Median home value$242,900$260,400$303,400
Median gross rent$1,162$1,339$1,348
Homeownership71.8%62.6%65%
Bachelor's degree or higher19.1%33.1%35%
Unemployment rate1.3%5.1%5.2%
Works from home11.3%12.8%13.5%
Born outside the US8.7%17.2%13.9%
Median age38.635.538.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationLULING, TX US23.6 km away
Rain in a year35 in

Average high and low by month

January63.9°F / 39.6°F2.4 in rain
February67.5°F / 43.2°F2.16 in rain
March74.2°F / 50.3°F2.74 in rain
April81°F / 56.5°F2.94 in rain
May87.5°F / 65.6°F4.2 in rain
June93.6°F / 72.1°F3.55 in rain
July96.8°F / 73.8°F1.85 in rain
August98.2°F / 73.3°F2.6 in rain
September91.8°F / 68.1°F3.42 in rain
October83.8°F / 58°F4.2 in rain
November73.1°F / 48.2°F2.57 in rain
December65.3°F / 40.9°F2.76 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarket14% of this ZIP code's area
Far from a supermarket14% of this ZIP code's area
No vehicle and far from a supermarket6% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 4 school districts, so the address decides which one, not the ZIP code.

Lockhart Independent School District88.1% of this ZIP code's land area
Luling Independent School District4.5% of this ZIP code's land area
Prairie Lea Independent School District3.9% of this ZIP code's land area
San Marcos Consolidated Independent School District2.9% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability69more vulnerable than 69% of US census tracts
Socioeconomic status60more vulnerable than 60% of US census tracts
Household characteristics61more vulnerable than 61% of US census tracts
Racial and ethnic minority status76more vulnerable than 76% of US census tracts
Housing type and transport66more vulnerable than 66% of US census tracts
Walkability4.4 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

78616 Dale, TX11.8 km away
78656 Maxwell, TX13.3 km away
78622 Fentress, TX17.4 km away
78655 Martindale, TX17.6 km away
78670 Staples, TX18.8 km away
78661 Prairie Lea, TX19.3 km away
78640 Kyle, TX19.4 km away
78648 Luling, TX22.9 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Caldwell County100% of this ZIP code's land area
Time zoneCentral (UTC-06:00 standard)
Daylight saving timeObserved
Land area179.92 sq mi
Water area0.78 sq mi
Population density114 people per sq mi
Latitude, longitude29.8868, -97.6769

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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