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Texas ZIP Codes
Cass County
Marietta, TX
75566
75566 ZIP Code — Marietta, TX
Cass County, Texas
ZIP code 75566 is located in
Marietta ,
Texas ,
within Cass County .
It covers approximately 46.89 square miles and serves a population of
678 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 430 .
About ZIP code 75566
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $97,000. Owner-occupancy is high at 99%, well above the national average.
Median household income is $62,159. The poverty rate of 4% is below the national average. 73% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is service, with arts, entertainment, and food service as the leading industry. The average commute of 23 minutes is near the national average.
College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of diabetes (20%), smoking (24%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 13% of civilians, above the national average of 7%; and disability rates above the national average at 35%.
Overall, ZIP code 75566 reflects a community defined by a trades-oriented workforce, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
75566 ZIP code map
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Cities in ZIP code 75566
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
678
Population density
14 / sq mi
State FIPS
48
County FIPS
067
Geography
Land area
46.89 sq mi
Water area
0.00 sq mi
Latitude
33.1956
Longitude
-94.5276
Timezone
Central (CT)
Area code
430
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
53.6%
39.5%
$50k – $100k
30.8%
29.1%
30.1%
$100k – $200k
11.5%
15.0%
22.6%
Over $200k
0.7%
2.4%
7.8%
Demographics & statistics
$62,159
Median household income
Age distribution
Age summary
Group Count % Under 18 167 24.6% 18 and over 511 75.4% 65 and over 190 28.0% Median age 50.2 years
Race & ethnicity
Black or African American
24.3%
Group Count % White 477 68% Black or African American 170 24.3% Hispanic or Latino 23 3.3% Other race 19 2.7% Two or more races 10 1.4% Asian 2 0.3%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
57.0%
53.6%
39.5%
$50k – $100k
30.8%
29.1%
30.1%
$100k – $200k
11.5%
15.0%
22.6%
Over $200k
0.7%
2.4%
7.8%
Range % of households Under $10k 0.8% $10k–$15k 4.9% $15k–$25k 13.1% $25k–$35k 14.7% $35k–$50k 7.8% $50k–$75k 21.2% $75k–$100k 14.7% $100k–$150k 21.6% $200k+ 1.2% Median income $62,159
Housing
Housing overview
Metric Value Median home value $97,000 Median rent / month $0 Owner occupied 98.8% Renter occupied 1.2% Vacant 35.4% Single-family detached 70.7% Large apartment buildings 0.0% Mobile homes 21.9% Median rooms 6.0 Avg household size (owned) 2.76
Year built
Era % 2020 or later 0.0% 2010–2019 17.2% 2000–2009 7.7% 1990–1999 21.6% 1980–1989 23.2% 1970–1979 1.8% 1960–1969 7.9% 1950–1959 7.4% 1940–1949 2.9% 1939 or earlier 10.3%
Bedrooms
Size % of units No bedroom (studio) 0.0% 1 bedroom 6.3% 2 bedrooms 17.7% 3 bedrooms 63.3% 4 bedrooms 5.3% 5+ bedrooms 7.4%
Vehicles per household
Vehicles % of households No vehicle 0.0% 1 vehicle 27.3% 2 vehicles 40.0% 3 or more 32.7%
Heating fuel
Fuel type % Utility gas 21.6% Electricity 65.7% Propane / LP gas 5.3% Wood 7.3%
Households & families
Household type Count % Married-couple family 164 66.9% Cohabiting couple 0 0.0% Male householder, no spouse 56 22.9% Female householder, no spouse 25 10.2% Households with children under 18 64 26.1% Households with seniors (65+) 143 58.4% Average household size 2.77
Marital status
Status Male Female Never married 29.0% 10.8% Married 45.1% 65.4% Separated 0.0% 7.4% Widowed 15.0% 12.6% Divorced 10.9% 3.9%
Education
Less than 9th grade
12.0%
Some college, no degree
27.0%
Graduate / professional
2.1%
Metric % HS diploma or higher 80.6% Bachelor's or higher 8.7%
School enrollment (ages 3–17)
Type Count % Nursery / preschool 1 0.6% Kindergarten 0 0.0% Elementary school 85 51.2% High school 68 41.0% College / grad school 12 7.2%
Employment
Industry of employment
Arts, food & hospitality
17.7%
Education & healthcare
17.2%
Agriculture & mining
9.4%
Transportation & utilities
8.9%
Public administration
8.3%
Finance & real estate
1.6%
Occupation
Category % Management, business & arts 12.5% Service 38.0% Sales & office 15.1% Natural resources & construction 10.4% Production & transportation 24.0%
Employment type
Type % Private sector 76.0% Government 9.4% Self-employed 14.1% Unpaid family workers 0.5%
Commute
Method % Drive alone 84.4% Carpool 0.0% Public transit 0.0% Walk 1.0% Work from home 2.1% Other means 12.5% Avg commute (minutes) 23.1
Poverty
Married-couple families
1.8%
Female-led households
0.0%
Income support
Source % of households Social Security 73.1% Retirement income 35.9% Supplemental Security 10.2% Cash public assistance 0.0% Food stamps / SNAP 5.7%
Health indicators
Condition % Obesity 40.2% High blood pressure 50.1% High cholesterol 41.9% Diabetes 19.8% Heart disease 11.0% Stroke 6.1% Asthma 10.9% Arthritis 34.9% Kidney disease 5.0% Pulmonary disease 12.3% Cancer 8.3%
Behavior / access % Smoking 23.7% Binge drinking 13.4% No physical activity 33.6% Less than 7 hrs sleep 37.2% Depression 22.4% Fair or poor health 27.2% Poor mental health 16.2% Poor physical health 16.9% No health insurance 24.9% Visited doctor (checkup) 77.6% Visited dentist 44.9% Cholesterol screening 91.0% Teeth loss 23.3%
Veterans & disability
Veterans Count % Civilian veterans 68 13.3%
Disability % Any disability 34.5% Under 18 19.2% 18–64 years 28.7% 65 and over 57.9%
Health insurance coverage
Type % Private insurance 58.6% Public insurance 53.8% No insurance 4.1% Uninsured under 19 1.6%
Language & origin
Language spoken at home (age 5+)
Language Count % English only 675 99.6% Spanish 14 2.1% Other Indo-European 13 1.9% Asian & Pacific Islander 0 0.0% Other languages 1 0.1%
Place of birth & citizenship
Origin Count % Native born (US) 663 97.8% Born in same state 663 97.8% Born in different state 463 68.3% Foreign born 0 0.0% Naturalized citizen 15 2.2% Not a US citizen 15 100.0%
Ancestry
Ancestry Count % Arab 148 21.8% French 24 3.5%
Ancestry Count % Italian 5 0.7%
Technology access
Metric % of households Computer access 36.1% Internet access 67.3%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 75566
What city is ZIP code 75566 in?
ZIP code 75566 is primarily assigned to Marietta, Texas.
What county is ZIP code 75566 in?
ZIP code 75566 falls within Cass County, Texas.
Does ZIP code 75566 have a large retiree population?
73% of households in ZIP code 75566 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 75566 mostly owner-occupied?
99% of occupied units in ZIP code 75566 are owner-occupied, well above the national average.
Does ZIP code 75566 have an older population?
28% of residents in ZIP code 75566 are 65 or older, above the national average of ~17%.
How educated is the population of ZIP code 75566?
9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What timezone is ZIP code 75566 in?
ZIP code 75566 observes the CST timezone.
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