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Texas ZIP Codes
Hill County
Mount Calm, TX
76673
76673 ZIP Code — Mount Calm, TX
Hill County, Texas
ZIP code 76673 is located in
Mount Calm ,
Texas ,
within Hill County .
It covers approximately 89.43 square miles and serves a population of
1,162 residents.
This is a standard ZIP code in the Central (CT) timezone,
served by area code 254 .
About ZIP code 76673
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $115,600. Owner-occupancy is high at 82%, well above the national average.
The gap between median ($53,482) and mean household income suggests income inequality — a small number of higher earners pull the average up. 50% 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. The average commute of 33 minutes is near the national average.
College attainment at 15% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (24%) compared to national benchmarks.
Overall, ZIP code 76673 reflects a community defined by a trades-oriented workforce, high homeownership, and a significant Social Security-dependent population.
76673 ZIP code map
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Cities in ZIP code 76673
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Nearby ZIP codes
Demographics
updated 06/2026
Population
Total population
1,162
Population density
13 / sq mi
State FIPS
48
County FIPS
217
Geography
Land area
89.43 sq mi
Water area
0.94 sq mi
Latitude
31.7621
Longitude
-96.9052
Timezone
Central (CT)
Area code
254
Economics
updated 06/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
58.3%
45.8%
39.5%
$50k – $100k
17.8%
33.4%
30.1%
$100k – $200k
18.9%
16.8%
22.6%
Over $200k
5.0%
3.9%
7.8%
Demographics & statistics
$53,482
Median household income
$115,600
Median home value
$1,035
Median monthly rent
15.1%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 342 29.4%
18 and over 820 70.6%
65 and over 254 21.9%
Median age 41.8 years
Race & ethnicity
Black or African American
6%
American Indian / Alaska Native
0.8%
Group Count %
White 879 65.5%
Two or more races 188 14%
Hispanic or Latino 180 13.4%
Black or African American 81 6%
American Indian / Alaska Native 11 0.8%
Other race 3 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
58.3%
45.8%
39.5%
$50k – $100k
17.8%
33.4%
30.1%
$100k – $200k
18.9%
16.8%
22.6%
Over $200k
5.0%
3.9%
7.8%
Range % of households
Under $10k 4.2%
$10k–$15k 1.9%
$15k–$25k 8.8%
$25k–$35k 7.4%
$35k–$50k 25.5%
$50k–$75k 14.6%
$75k–$100k 9.3%
$100k–$150k 13.3%
$150k–$200k 4.0%
$200k+ 11.1%
Median income $53,482
Housing
Housing overview
Metric Value
Median home value $115,600
Median rent / month $1,035
Owner occupied 82.2%
Renter occupied 17.8%
Vacant 20.6%
Single-family detached 71.8%
Large apartment buildings 0.0%
Mobile homes 27.6%
Median rooms 5.4
Avg household size (owned) 3.07
Year built
Era %
2020 or later 1.7%
2010–2019 7.6%
2000–2009 6.5%
1990–1999 23.8%
1980–1989 19.8%
1970–1979 13.9%
1960–1969 4.4%
1950–1959 6.5%
1940–1949 4.6%
1939 or earlier 11.2%
Bedrooms
Size % of units
No bedroom (studio) 0.6%
1 bedroom 7.2%
2 bedrooms 27.2%
3 bedrooms 46.1%
4 bedrooms 16.6%
5+ bedrooms 2.3%
Vehicles per household
Vehicles % of households
No vehicle 0.8%
1 vehicle 38.2%
2 vehicles 23.6%
3 or more 37.4%
Heating fuel
Fuel type %
Utility gas 0.5%
Electricity 80.6%
Propane / LP gas 17.8%
Wood 1.1%
Households & families
Household type Count %
Married-couple family 171 45.4%
Cohabiting couple 19 5.0%
Male householder, no spouse 63 16.7%
Female householder, no spouse 124 32.9%
Households with children under 18 101 26.8%
Households with seniors (65+) 180 47.7%
Average household size 3.08
Marital status
Status Male Female
Never married 27.5% 21.3%
Married 54.2% 43.1%
Separated 1.2% 0.4%
Widowed 2.5% 7.4%
Divorced 14.6% 27.8%
Education
Some college, no degree
23.8%
Graduate / professional
3.5%
Metric %
HS diploma or higher 85.9%
Bachelor's or higher 15.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 13 4.0%
Kindergarten 44 13.5%
Elementary school 135 41.3%
High school 104 31.8%
College / grad school 31 9.5%
Employment
Industry of employment
Education & healthcare
23.2%
Professional & management
6.8%
Public administration
5.0%
Transportation & utilities
4.8%
Finance & real estate
4.8%
Arts, food & hospitality
3.7%
Agriculture & mining
2.4%
Occupation
Category %
Management, business & arts 30.0%
Service 15.1%
Sales & office 21.3%
Natural resources & construction 15.8%
Production & transportation 17.8%
Employment type
Type %
Private sector 68.6%
Government 22.8%
Self-employed 8.6%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 76.7%
Carpool 6.4%
Public transit 0.0%
Walk 1.3%
Work from home 15.1%
Other means 0.4%
Avg commute (minutes) 32.5
Poverty
Married-couple families
7.6%
Female-led households
27.8%
Income support
Source % of households
Social Security 49.9%
Retirement income 31.8%
Supplemental Security 3.4%
Cash public assistance 2.4%
Food stamps / SNAP 11.7%
Health indicators
Condition %
Obesity 39.2%
High blood pressure 41.0%
High cholesterol 38.4%
Diabetes 14.6%
Heart disease 9.0%
Stroke 4.3%
Asthma 10.3%
Arthritis 29.2%
Kidney disease 3.8%
Pulmonary disease 10.7%
Cancer 7.0%
Behavior / access %
Smoking 24.1%
Binge drinking 17.0%
No physical activity 29.8%
Less than 7 hrs sleep 35.5%
Depression 24.7%
Fair or poor health 22.7%
Poor mental health 17.1%
Poor physical health 15.1%
No health insurance 26.1%
Visited doctor (checkup) 71.8%
Visited dentist 47.4%
Cholesterol screening 88.4%
Teeth loss 19.9%
Veterans & disability
Veterans Count %
Civilian veterans 80 9.8%
Disability %
Any disability 20.0%
Under 18 0.9%
18–64 years 15.2%
65 and over 56.3%
Health insurance coverage
Type %
Private insurance 65.1%
Public insurance 38.2%
No insurance 7.7%
Uninsured under 19 0.6%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 1,120 96.4%
Spanish 60 5.4%
Other Indo-European 60 5.4%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 1,073 92.3%
Born in same state 1,066 91.7%
Born in different state 896 77.1%
Foreign born 7 0.6%
Naturalized citizen 89 7.7%
Not a US citizen 7 7.9%
Ancestry
Ancestry Count %
Arab 85 7.3%
Italian 80 6.9%
French 73 6.3%
Ancestry Count %
English 35 3%
Polish 8 0.7%
Technology access
Metric % of households
Computer access 32.4%
Internet access 91.8%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 76673
What city is ZIP code 76673 in?
ZIP code 76673 is primarily assigned to Mount Calm, Texas.
What county is ZIP code 76673 in?
ZIP code 76673 falls within Hill County, Texas.
Does ZIP code 76673 have a large retiree population?
50% of households in ZIP code 76673 receive Social Security income, suggesting a significant retiree or disability population.
Is ZIP code 76673 mostly owner-occupied?
82% of occupied units in ZIP code 76673 are owner-occupied, well above the national average.
What is the typical home value in ZIP code 76673?
The median home value in ZIP code 76673 is $115,600.
Does ZIP code 76673 have a large veteran population?
10% of civilians in ZIP code 76673 are veterans, above the national average of ~7%.
What timezone is ZIP code 76673 in?
ZIP code 76673 observes the CST timezone.
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