78957 ZIP Code — Smithville, TX

Bastrop County, Texas

ZIP code 78957 is located in Smithville, Texas, within Bastrop County. It covers approximately 177.05 square miles and serves a population of 9,887 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 512/737/830/979.

About ZIP code 78957

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $227,000. Owner-occupancy is high at 77%, well above the national average.

Median household income is $63,732. 30% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 35 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.

16% of residents lack health insurance, above the national average.

Overall, ZIP code 78957 reflects a community defined by high homeownership and a significant Social Security-dependent population.

9,887

population

177.05

sq mi land

Standard

ZIP type

Central (CT)

timezone

78957 ZIP code map

Cities in ZIP code 78957

Below are the cities the US Postal Service accepts for ZIP code 78957. Using any city not on this list may result in mail delivery delays.

City	Status
Smithville	Acceptable
Smithville	Preferred

Nearby ZIP codes

78963 West Point (9.3 mi) 78602 Bastrop (12.2 mi) 78941 Flatonia (15.1 mi) 78659 Paige (15.2 mi) 78953 Rosanky (15.6 mi) 78662 Red Rock (15.7 mi) 78612 Cedar Creek (18.6 mi) 78945 La Grange (18.7 mi) 78942 Giddings (19.1 mi) 78650 Mc Dade (19.5 mi)

Demographics updated 06/2026

Population
Total population	9,887
Population density	56 / sq mi
State FIPS	48
County FIPS	021

Geography
Land area	177.05 sq mi
Water area	2.06 sq mi
Latitude	30.0000
Longitude	-97.1891
Timezone	Central (CT)
Area code	512/737/830/979

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.3%	36.8%	39.5%
$50k – $100k	29.0%	30.9%	30.1%
$100k – $200k	25.6%	27.4%	22.6%
Over $200k	5.0%	4.9%	7.8%

Demographics & statistics

9,887

Population

People per sq mi

39.9

Median age

$63,732

Median household income

$36,728

Per capita income

$227,000

Median home value

$971

Median monthly rent

77.1%

Home ownership

11.6%

Poverty rate

3.4%

Unemployment

3,924

Housing units

25.9%

Bachelor's or higher

Age distribution

Male Female

385

Under 5

391

359

5–9

363

250

10–14

254

244

15–19

248

176

20–24

178

599

25–34

607

610

35–44

619

683

45–54

692

325

55–59

329

381

60–64

386

500

65–74

507

315

75–84

320

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,297	23.2%
18 and over	7,590	76.8%
65 and over	1,808	18.3%
Median age	39.9 years

Race & ethnicity

White 63.7%

Two or more races 12.5%

Hispanic or Latino 11.4%

Black or African American 7.3%

Other race 4.1%

Asian 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	7,106	63.7%
Two or more races	1,399	12.5%
Hispanic or Latino	1,271	11.4%
Black or African American	811	7.3%
Other race	463	4.1%
Asian	84	0.8%
American Indian / Alaska Native	24	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.3%	36.8%	39.5%
$50k – $100k	29.0%	30.9%	30.1%
$100k – $200k	25.6%	27.4%	22.6%
Over $200k	5.0%	4.9%	7.8%

Under $10k 4.9%

$10k–$15k 2.8%

$15k–$25k 6.6%

$25k–$35k 8.0%

$35k–$50k 17.1%

$50k–$75k 20.5%

$75k–$100k 7.6%

$100k–$150k 14.5%

$150k–$200k 9.7%

$200k+ 8.3%

Range	% of households
Under $10k	4.9%
$10k–$15k	2.8%
$15k–$25k	6.6%
$25k–$35k	8.0%
$35k–$50k	17.1%
$50k–$75k	20.5%
$75k–$100k	7.6%
$100k–$150k	14.5%
$150k–$200k	9.7%
$200k+	8.3%
Median income	$63,732

Housing

Home values

Under $50k 7.1%

$50k–$100k 6.9%

$100k–$150k 14.7%

$150k–$200k 10.7%

$200k–$300k 29.8%

$300k–$500k 22.3%

$500k–$1M 7.1%

$1M+ 1.5%

Housing overview

Metric	Value
Median home value	$227,000
Median rent / month	$971
Owner occupied	77.1%
Renter occupied	22.9%
Vacant	18.2%
Single-family detached	75.1%
Large apartment buildings	2.8%
Mobile homes	15.9%
Median rooms	5.5
Avg household size (owned)	2.47

Year built

Era	%
2020 or later	0.0%
2010–2019	15.8%
2000–2009	18.5%
1990–1999	12.3%
1980–1989	17.4%
1970–1979	10.5%
1960–1969	5.1%
1950–1959	2.8%
1940–1949	4.4%
1939 or earlier	13.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	15.9%
2 bedrooms	22.4%
3 bedrooms	49.0%
4 bedrooms	9.0%
5+ bedrooms	3.0%

Vehicles per household

Vehicles	% of households
No vehicle	4.6%
1 vehicle	29.2%
2 vehicles	36.9%
3 or more	29.3%

Heating fuel

Fuel type	%
Utility gas	30.4%
Electricity	64.3%
Propane / LP gas	4.1%
Wood	0.3%
Solar	0.9%

Households & families

Household type	Count	%
Married-couple family	2,084	52.7%
Cohabiting couple	292	7.4%
Male householder, no spouse	644	16.3%
Female householder, no spouse	934	23.6%
Households with children under 18	1,093	27.6%
Households with seniors (65+)	1,212	30.7%
Average household size	2.46

Marital status

Status	Male	Female
Never married	20.5%	18.4%
Married	64.7%	50.0%
Separated	1.3%	4.1%
Widowed	1.9%	11.7%
Divorced	11.6%	15.9%

Education

Less than 9th grade 7.5%

Some HS, no diploma 3.1%

HS graduate 25.1%

Some college, no degree 27.7%

Associate's degree 10.9%

Bachelor's degree 18.2%

Graduate / professional 7.7%

Metric	%
HS diploma or higher	89.5%
Bachelor's or higher	25.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	172	8.8%
Kindergarten	107	5.5%
Elementary school	977	50.2%
High school	339	17.4%
College / grad school	350	18.0%

Employment

Industry of employment

Education & healthcare 18.3%

Retail trade 13.5%

Professional & management 12.7%

Construction 10.7%

Public administration 9.4%

Transportation & utilities 7.4%

Manufacturing 7.0%

Arts, food & hospitality 5.9%

Finance & real estate 4.4%

Other services 3.6%

Wholesale trade 3.3%

Agriculture & mining 3.1%

Information 0.6%

Occupation

Category	%
Management, business & arts	29.8%
Service	12.7%
Sales & office	22.0%
Natural resources & construction	17.3%
Production & transportation	18.2%

Employment type

Type	%
Private sector	69.4%
Government	20.7%
Self-employed	8.6%
Unpaid family workers	1.3%

Commute

Method	%
Drive alone	74.6%
Carpool	11.8%
Public transit	1.1%
Walk	1.6%
Work from home	10.4%
Other means	0.4%
Avg commute (minutes)	35.2

Poverty

All people 11.6%

Under 18 years 15.5%

18 and over 10.4%

Married-couple families 7.3%

Female-led households 12.6%

Income support

Source	% of households
Social Security	30.1%
Retirement income	19.6%
Supplemental Security	3.0%
Cash public assistance	4.3%
Food stamps / SNAP	5.9%

Health indicators

Condition	%
Obesity	33.7%
High blood pressure	37.3%
High cholesterol	37.7%
Diabetes	12.6%
Heart disease	7.6%
Stroke	3.5%
Asthma	9.4%
Arthritis	26.0%
Kidney disease	3.3%
Pulmonary disease	8.0%
Cancer	7.2%

Behavior / access	%
Smoking	19.5%
Binge drinking	17.4%
No physical activity	25.3%
Less than 7 hrs sleep	34.4%
Depression	21.3%
Fair or poor health	17.7%
Poor mental health	15.0%
Poor physical health	12.2%
No health insurance	23.6%
Visited doctor (checkup)	70.6%
Visited dentist	56.5%
Cholesterol screening	90.6%
Teeth loss	14.9%

Veterans & disability

Veterans	Count	%
Civilian veterans	686	9.0%

Disability	%
Any disability	12.0%
Under 18	4.4%
18–64 years	9.3%
65 and over	31.2%

Health insurance coverage

Type	%
Private insurance	66.3%
Public insurance	33.9%
No insurance	15.6%
Uninsured under 19	8.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	9,111	92.2%
Spanish	525	5.8%
Other Indo-European	514	5.6%
Asian & Pacific Islander	9	0.1%
Other languages	2	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,177	92.8%
Born in same state	8,981	90.8%
Born in different state	6,292	63.6%
Foreign born	196	2.0%
Naturalized citizen	710	7.2%
Not a US citizen	196	27.6%

Ancestry

Ancestry	Count	%
Italian	1,327	13.4%
French	1,088	11%
Arab	348	3.5%
English	177	1.8%

Ancestry	Count	%
Irish	22	0.2%
Norwegian	13	0.1%
Dutch	13	0.1%

Technology access

Metric	% of households
Computer access	40.0%
Internet access	96.1%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 78957

What city is ZIP code 78957 in?

ZIP code 78957 is primarily assigned to Smithville, Texas.

What county is ZIP code 78957 in?

ZIP code 78957 falls within Bastrop County, Texas.

What is the population of ZIP code 78957?

ZIP code 78957 has an estimated population of 9,887 residents, with a density of 56 people per square mile.

What is the median household income in ZIP code 78957?

The median household income in ZIP code 78957 is $63,732, below the national median of ~$75,000.

What is the typical home value in ZIP code 78957?

The median home value in ZIP code 78957 is $227,000.

What timezone is ZIP code 78957 in?

ZIP code 78957 observes the CST timezone.