78621 ZIP Code — Elgin, TX
Bastrop County, Texas
ZIP code 78621 is located in Elgin, Texas, within Bastrop County. It covers approximately 177.72 square miles and serves a population of 26,133 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 512/737.
About ZIP code 78621
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $247,900. Owner-occupancy is high at 80%, well above the national average.
Median household income is $92,103.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 36 minutes suggests many residents work outside the immediate area.
Educational attainment is near the national average, with 22% of residents holding a bachelor's degree or higher.
Health indicators show elevated rates of smoking (20%) compared to national benchmarks. 18% of residents lack health insurance, above the national average.
26,133
population
177.72
sq mi land
Standard
ZIP type
Central (CT)
timezone
78621 ZIP code map
Cities in ZIP code 78621
Below are the cities the US Postal Service accepts for ZIP code 78621. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Elgin | Acceptable |
| Elgin | Preferred |
Nearby ZIP codes
78650 Mc Dade (8.6 mi)
78615 Coupland (10.6 mi)
78653 Manor (10.7 mi)
78602 Bastrop (12.8 mi)
78724 Austin (15.7 mi)
78659 Paige (16 mi)
76578 Thrall (16.1 mi)
78725 Austin (16.2 mi)
78612 Cedar Creek (16.9 mi)
78660 Pflugerville (16.9 mi)
78754 Austin (17.7 mi)
76574 Taylor (18.1 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 26,133 |
| Population density | 147 / sq mi |
| State FIPS | 48 |
| County FIPS | 021 |
| Geography | |
|---|---|
| Land area | 177.72 sq mi |
| Water area | 0.96 sq mi |
| Latitude | 30.3182 |
| Longitude | -97.3520 |
| Timezone | Central (CT) |
| Area code | 512/737 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 32.8% | 36.8% | 39.5% |
| $50k – $100k | 33.7% | 30.9% | 30.1% |
| $100k – $200k | 29.5% | 27.4% | 22.6% |
| Over $200k | 4.0% | 4.9% | 7.8% |
Demographics & statistics
26,133
Population
147
People per sq mi
38.2
Median age
$92,103
Median household income
$35,427
Per capita income
$247,900
Median home value
$1,163
Median monthly rent
79.7%
Home ownership
9.2%
Poverty rate
4.4%
Unemployment
7,776
Housing units
22.2%
Bachelor's or higher
Age distribution
Male
Female
801
Under 5
879
921
5–9
1,009
991
10–14
1,086
801
15–19
879
628
20–24
688
1,415
25–34
1,552
1,715
35–44
1,880
1,762
45–54
1,933
834
55–59
914
875
60–64
959
1,145
65–74
1,256
452
75–84
496
125
85+
137
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 6,916 | 26.5% |
| 18 and over | 19,217 | 73.5% |
| 65 and over | 3,611 | 13.8% |
| Median age | 38.2 years | |
Race & ethnicity
White
44%
Hispanic or Latino
23.4%
Other race
17%
Two or more races
7.9%
Black or African American
6.9%
American Indian / Alaska Native
0.6%
Asian
0.3%
| Group | Count | % |
|---|---|---|
| White | 15,018 | 44% |
| Hispanic or Latino | 7,977 | 23.4% |
| Other race | 5,815 | 17% |
| Two or more races | 2,686 | 7.9% |
| Black or African American | 2,338 | 6.9% |
| American Indian / Alaska Native | 190 | 0.6% |
| Asian | 86 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 32.8% | 36.8% | 39.5% |
| $50k – $100k | 33.7% | 30.9% | 30.1% |
| $100k – $200k | 29.5% | 27.4% | 22.6% |
| Over $200k | 4.0% | 4.9% | 7.8% |
Under $10k
5.8%
$10k–$15k
3.1%
$15k–$25k
3.5%
$25k–$35k
7.9%
$35k–$50k
5.8%
$50k–$75k
14.0%
$75k–$100k
18.1%
$100k–$150k
20.7%
$150k–$200k
12.6%
$200k+
8.4%
| Range | % of households |
|---|---|
| Under $10k | 5.8% |
| $10k–$15k | 3.1% |
| $15k–$25k | 3.5% |
| $25k–$35k | 7.9% |
| $35k–$50k | 5.8% |
| $50k–$75k | 14.0% |
| $75k–$100k | 18.1% |
| $100k–$150k | 20.7% |
| $150k–$200k | 12.6% |
| $200k+ | 8.4% |
| Median income | $92,103 |
Housing
Home values
Under $50k
9.1%
$50k–$100k
5.9%
$100k–$150k
9.4%
$150k–$200k
9.5%
$200k–$300k
26.5%
$300k–$500k
26.4%
$500k–$1M
10.5%
$1M+
2.6%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $247,900 |
| Median rent / month | $1,163 |
| Owner occupied | 79.7% |
| Renter occupied | 20.3% |
| Vacant | 8.5% |
| Single-family detached | 67.6% |
| Large apartment buildings | 0.7% |
| Mobile homes | 23.7% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.93 |
Year built
| Era | % |
|---|---|
| 2020 or later | 1.2% |
| 2010–2019 | 12.2% |
| 2000–2009 | 25.1% |
| 1990–1999 | 17.7% |
| 1980–1989 | 15.9% |
| 1970–1979 | 9.1% |
| 1960–1969 | 5.1% |
| 1950–1959 | 4.9% |
| 1940–1949 | 2.8% |
| 1939 or earlier | 6.1% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 1.3% |
| 1 bedroom | 6.7% |
| 2 bedrooms | 23.6% |
| 3 bedrooms | 50.0% |
| 4 bedrooms | 16.8% |
| 5+ bedrooms | 1.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.2% |
| 1 vehicle | 26.0% |
| 2 vehicles | 42.0% |
| 3 or more | 29.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 21.8% |
| Electricity | 67.3% |
| Propane / LP gas | 8.2% |
| Wood | 1.4% |
| No fuel used | 1.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 4,882 | 55.8% |
| Cohabiting couple | 278 | 3.2% |
| Male householder, no spouse | 865 | 9.9% |
| Female householder, no spouse | 2,722 | 31.1% |
| Households with children under 18 | 3,347 | 38.3% |
| Households with seniors (65+) | 2,329 | 26.6% |
| Average household size | 2.96 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 29.7% | 27.5% |
| Married | 56.0% | 49.8% |
| Separated | 0.8% | 2.7% |
| Widowed | 5.0% | 5.1% |
| Divorced | 8.5% | 14.9% |
Education
Less than 9th grade
12.1%
Some HS, no diploma
6.4%
HS graduate
31.3%
Some college, no degree
23.8%
Associate's degree
4.2%
Bachelor's degree
14.2%
Graduate / professional
7.9%
| Metric | % |
|---|---|
| HS diploma or higher | 81.4% |
| Bachelor's or higher | 22.2% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 288 | 5.0% |
| Kindergarten | 284 | 4.9% |
| Elementary school | 2,948 | 51.1% |
| High school | 1,503 | 26.0% |
| College / grad school | 751 | 13.0% |
Employment
Industry of employment
Education & healthcare
19.3%
Construction
16.1%
Retail trade
11.4%
Manufacturing
10.3%
Professional & management
9.0%
Public administration
7.7%
Arts, food & hospitality
6.8%
Finance & real estate
5.7%
Transportation & utilities
4.3%
Other services
3.9%
Information
2.6%
Agriculture & mining
1.7%
Wholesale trade
1.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 31.7% |
| Service | 19.1% |
| Sales & office | 21.8% |
| Natural resources & construction | 15.4% |
| Production & transportation | 12.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 74.2% |
| Government | 18.5% |
| Self-employed | 7.4% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 75.7% |
| Carpool | 11.0% |
| Public transit | 0.0% |
| Walk | 0.3% |
| Work from home | 12.5% |
| Other means | 0.5% |
| Avg commute (minutes) | 35.8 |
Poverty
All people
9.2%
Under 18 years
13.3%
18 and over
7.7%
Married-couple families
4.8%
Female-led households
16.4%
Income support
| Source | % of households |
|---|---|
| Social Security | 25.5% |
| Retirement income | 18.8% |
| Supplemental Security | 3.7% |
| Cash public assistance | 0.8% |
| Food stamps / SNAP | 4.9% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 35.1% |
| High blood pressure | 32.6% |
| High cholesterol | 34.0% |
| Diabetes | 11.9% |
| Heart disease | 6.1% |
| Stroke | 3.0% |
| Asthma | 9.5% |
| Arthritis | 21.4% |
| Kidney disease | 2.9% |
| Pulmonary disease | 6.8% |
| Cancer | 5.3% |
| Behavior / access | % |
|---|---|
| Smoking | 20.1% |
| Binge drinking | 18.7% |
| No physical activity | 27.4% |
| Less than 7 hrs sleep | 35.5% |
| Depression | 22.0% |
| Fair or poor health | 19.1% |
| Poor mental health | 16.3% |
| Poor physical health | 12.0% |
| No health insurance | 32.0% |
| Visited doctor (checkup) | 68.0% |
| Visited dentist | 51.6% |
| Cholesterol screening | 87.7% |
| Teeth loss | 17.0% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,522 | 7.9% |
| Disability | % |
|---|---|
| Any disability | 12.2% |
| Under 18 | 5.3% |
| 18–64 years | 9.9% |
| 65 and over | 36.1% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 66.0% |
| Public insurance | 25.7% |
| No insurance | 17.7% |
| Uninsured under 19 | 12.6% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 24,453 | 93.6% |
| Spanish | 3,372 | 13.8% |
| Other Indo-European | 3,279 | 13.4% |
| Asian & Pacific Islander | 22 | 0.1% |
| Other languages | 29 | 0.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 21,855 | 83.6% |
| Born in same state | 21,497 | 82.3% |
| Born in different state | 17,124 | 65.5% |
| Foreign born | 358 | 1.4% |
| Naturalized citizen | 4,278 | 16.4% |
| Not a US citizen | 1,441 | 33.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 1,721 | 6.6% |
| Italian | 1,651 | 6.3% |
| Arab | 723 | 2.8% |
| Polish | 160 | 0.6% |
| Ancestry | Count | % |
|---|---|---|
| English | 147 | 0.6% |
| German | 87 | 0.3% |
| Irish | 19 | 0.1% |
| Dutch | 18 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 33.5% |
| Internet access | 94.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 78621
What city is ZIP code 78621 in?
ZIP code 78621 is primarily assigned to Elgin, Texas.
What county is ZIP code 78621 in?
ZIP code 78621 falls within Bastrop County, Texas.
What is the population of ZIP code 78621?
ZIP code 78621 has an estimated population of 26,133 residents, with a density of 147 people per square mile.
What is the median household income in ZIP code 78621?
The median household income in ZIP code 78621 is $92,103, above the national median of ~$75,000.
What is the typical home value in ZIP code 78621?
The median home value in ZIP code 78621 is $247,900.
What timezone is ZIP code 78621 in?
ZIP code 78621 observes the CST timezone.