76666 ZIP Code — Mertens, TX
Hill County, Texas
ZIP code 76666 is located in Mertens, Texas, within Hill County. It covers approximately 28.09 square miles and serves a population of 186 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 254.
186
population
28.09
sq mi land
Standard
ZIP type
Central (CT)
timezone
76666 ZIP code map
Cities in ZIP code 76666
Below are the cities the US Postal Service accepts for ZIP code 76666. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Mertens | Preferred |
Nearby ZIP codes
76631 Bynum (3.7 mi)
76660 Malone (6.4 mi)
76641 Frost (7.5 mi)
76670 Milford (10 mi)
76651 Italy (11 mi)
76645 Hillsboro (11.5 mi)
76676 Penelope (12 mi)
76626 Blooming Grove (13.5 mi)
76648 Hubbard (13.8 mi)
76621 Abbott (14.4 mi)
76041 Forreston (15.5 mi)
76055 Itasca (16.3 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 186 |
| Population density | 7 / sq mi |
| State FIPS | 48 |
| County FIPS | 217 |
| Geography | |
|---|---|
| Land area | 28.09 sq mi |
| Water area | 0.25 sq mi |
| Latitude | 32.0216 |
| Longitude | -96.9081 |
| Timezone | Central (CT) |
| Area code | 254 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 51.1% | 45.8% | 39.5% |
| $50k – $100k | 23.4% | 33.4% | 30.1% |
| $100k – $200k | 25.5% | 16.8% | 22.6% |
| Over $200k | 0.0% | 3.9% | 7.8% |
Demographics & statistics
186
Population
7
People per sq mi
31.4
Median age
$41,042
Median household income
$26,834
Per capita income
$118,800
Median home value
$0
Median monthly rent
57.0%
Home ownership
12.9%
Poverty rate
0.0%
Unemployment
71
Housing units
10.1%
Bachelor's or higher
Age distribution
Male
Female
14
Under 5
13
1
5–9
0
1
10–14
1
2
15–19
2
7
20–24
7
26
25–34
24
6
35–44
5
9
45–54
9
12
55–59
11
1
60–64
0
10
65–74
10
4
75–84
3
4
85+
4
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 34 | 18.3% |
| 18 and over | 152 | 81.7% |
| 65 and over | 35 | 18.8% |
| Median age | 31.4 years | |
Race & ethnicity
White
85.1%
Hispanic or Latino
7.5%
Other race
7.5%
| Group | Count | % |
|---|---|---|
| White | 171 | 85.1% |
| Hispanic or Latino | 15 | 7.5% |
| Other race | 15 | 7.5% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 51.1% | 45.8% | 39.5% |
| $50k – $100k | 23.4% | 33.4% | 30.1% |
| $100k – $200k | 25.5% | 16.8% | 22.6% |
| Over $200k | 0.0% | 3.9% | 7.8% |
$10k–$15k
6.3%
$15k–$25k
13.9%
$25k–$35k
8.9%
$35k–$50k
35.4%
$50k–$75k
13.9%
$75k–$100k
13.9%
$100k–$150k
5.1%
$150k–$200k
2.5%
| Range | % of households |
|---|---|
| $10k–$15k | 6.3% |
| $15k–$25k | 13.9% |
| $25k–$35k | 8.9% |
| $35k–$50k | 35.4% |
| $50k–$75k | 13.9% |
| $75k–$100k | 13.9% |
| $100k–$150k | 5.1% |
| $150k–$200k | 2.5% |
| Median income | $41,042 |
Housing
Home values
Under $50k
17.8%
$50k–$100k
28.9%
$100k–$150k
17.8%
$150k–$200k
13.3%
$200k–$300k
22.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $118,800 |
| Median rent / month | $0 |
| Owner occupied | 57.0% |
| Renter occupied | 43.0% |
| Vacant | 24.8% |
| Single-family detached | 74.3% |
| Large apartment buildings | 0.0% |
| Mobile homes | 14.3% |
| Median rooms | 5.3 |
| Avg household size (owned) | 2.27 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.0% |
| 2010–2019 | 3.8% |
| 2000–2009 | 14.3% |
| 1990–1999 | 16.2% |
| 1980–1989 | 21.9% |
| 1970–1979 | 14.3% |
| 1960–1969 | 0.0% |
| 1950–1959 | 8.6% |
| 1940–1949 | 20.0% |
| 1939 or earlier | 1.0% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 16.2% |
| 1 bedroom | 17.1% |
| 2 bedrooms | 17.1% |
| 3 bedrooms | 33.3% |
| 4 bedrooms | 16.2% |
| 5+ bedrooms | 0.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 0.0% |
| 1 vehicle | 59.5% |
| 2 vehicles | 10.1% |
| 3 or more | 30.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 2.5% |
| Electricity | 69.6% |
| Propane / LP gas | 25.3% |
| No fuel used | 2.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 29 | 36.7% |
| Cohabiting couple | 1 | 1.3% |
| Male householder, no spouse | 22 | 27.8% |
| Female householder, no spouse | 27 | 34.2% |
| Households with children under 18 | 20 | 25.3% |
| Households with seniors (65+) | 28 | 35.4% |
| Average household size | 2.35 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 30.7% | 21.0% |
| Married | 48.0% | 48.1% |
| Separated | 0.0% | 0.0% |
| Widowed | 0.0% | 14.8% |
| Divorced | 21.3% | 16.0% |
Education
Less than 9th grade
6.5%
Some HS, no diploma
2.9%
HS graduate
29.0%
Some college, no degree
31.2%
Associate's degree
20.3%
Bachelor's degree
2.2%
Graduate / professional
8.0%
| Metric | % |
|---|---|
| HS diploma or higher | 90.6% |
| Bachelor's or higher | 10.1% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 0 | 0.0% |
| Kindergarten | 0 | 0.0% |
| Elementary school | 3 | 42.9% |
| High school | 4 | 57.1% |
| College / grad school | 0 | 0.0% |
Employment
Industry of employment
Public administration
30.1%
Education & healthcare
18.4%
Transportation & utilities
11.7%
Other services
9.7%
Agriculture & mining
7.8%
Construction
6.8%
Retail trade
4.9%
Finance & real estate
3.9%
Manufacturing
2.9%
Information
1.9%
Professional & management
1.9%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 20.4% |
| Service | 35.0% |
| Sales & office | 20.4% |
| Natural resources & construction | 2.9% |
| Production & transportation | 21.4% |
Employment type
| Type | % |
|---|---|
| Private sector | 38.8% |
| Government | 48.5% |
| Self-employed | 12.6% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 68.4% |
| Carpool | 29.6% |
| Public transit | 0.0% |
| Walk | 2.0% |
| Work from home | 0.0% |
| Other means | 0.0% |
| Avg commute (minutes) | 42.2 |
Poverty
All people
12.9%
Under 18 years
0.0%
18 and over
15.8%
Married-couple families
0.0%
Female-led households
75.0%
Income support
| Source | % of households |
|---|---|
| Social Security | 25.3% |
| Retirement income | 7.6% |
| Supplemental Security | 3.8% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 7.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 34.5% |
| High blood pressure | 42.3% |
| High cholesterol | 41.0% |
| Diabetes | 13.8% |
| Heart disease | 9.9% |
| Stroke | 4.2% |
| Asthma | 9.0% |
| Arthritis | 30.9% |
| Kidney disease | 3.8% |
| Pulmonary disease | 9.3% |
| Cancer | 9.2% |
| Behavior / access | % |
|---|---|
| Smoking | 17.2% |
| Binge drinking | 15.5% |
| No physical activity | 26.0% |
| Less than 7 hrs sleep | 32.0% |
| Depression | 21.8% |
| Fair or poor health | 18.4% |
| Poor mental health | 14.0% |
| Poor physical health | 12.9% |
| No health insurance | 23.6% |
| Visited doctor (checkup) | 74.2% |
| Visited dentist | 56.3% |
| Cholesterol screening | 91.7% |
| Teeth loss | 14.6% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 10 | 6.6% |
| Disability | % |
|---|---|
| Any disability | 13.4% |
| Under 18 | 0.0% |
| 18–64 years | 12.8% |
| 65 and over | 28.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 61.3% |
| Public insurance | 30.6% |
| No insurance | 12.4% |
| Uninsured under 19 | 11.8% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 159 | 85.5% |
| Spanish | 15 | 9.4% |
| Other Indo-European | 15 | 9.4% |
| Asian & Pacific Islander | 0 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 171 | 91.9% |
| Born in same state | 163 | 87.6% |
| Born in different state | 133 | 71.5% |
| Foreign born | 8 | 4.3% |
| Naturalized citizen | 15 | 8.1% |
| Not a US citizen | 15 | 100.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 18 | 9.7% |
| French | 16 | 8.6% |
| Ancestry | Count | % |
|---|---|---|
| Arab | 7 | 3.8% |
| English | 4 | 2.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 42.5% |
| Internet access | 86.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 76666
What city is ZIP code 76666 in?
ZIP code 76666 is primarily assigned to Mertens, Texas.
What county is ZIP code 76666 in?
ZIP code 76666 falls within Hill County, Texas.
How educated is the population of ZIP code 76666?
10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the typical home value in ZIP code 76666?
The median home value in ZIP code 76666 is $118,800.
What is the median household income in ZIP code 76666?
The median household income in ZIP code 76666 is $41,042, below the national median of ~$75,000.
What is the population of ZIP code 76666?
ZIP code 76666 has an estimated population of 186 residents, with a density of 7 people per square mile.
What timezone is ZIP code 76666 in?
ZIP code 76666 observes the CST timezone.