Mertens ZIP Code List — Hill County, TX

There is one unique ZIP code in Mertens, Texas and it is 76666. Area code: 254.

ZIP codes

28.09

sq mi land

0.25

sq mi water

254

area code

Mertens, TX ZIP code map

About Mertens, TX

Mertens is a small, unincorporated community located in the state of Texas. It falls within Hill County, which is situated in the central part of the state. Known for its rural charm, Mertens offers a quiet lifestyle away from the hustle and bustle of larger cities.

Location & geography

Mertens is defined by its expansive landscape of 28.09 square miles of land and 0.25 square miles of water. The community is surrounded by other Hill County towns, including Hillsboro approximately 16 miles to the northeast and Itasca around 12 miles to the northwest. The terrain is characteristic of central Texas, featuring open fields and rolling landscapes.

Community & economy

The character of Mertens is that of a close-knit community where residents often know one another. The local economy is primarily driven by agriculture and small businesses, reflecting the region's rural heritage. Daily life in Mertens is peaceful, with locals engaging in community activities and supporting local enterprises.

Transportation

Mertens is conveniently located near major highways, including U.S. Route 77, which provides easy access to larger towns and cities. The closest named airport is the Hillsboro Municipal Airport, located about 17 miles northeast, offering essential air travel services. Public transportation options are limited, emphasizing a reliance on personal vehicles.

History

Mertens was founded during the late 19th century, primarily as a farming community. The area has historically relied on agriculture as its key industry, contributing to the local economy and settlement growth. While Mertens may not have significant historical events, its development reflects the broader agricultural trends of rural Texas.

Did you know?

One surprising fact about Mertens is that it has only one ZIP code, which is 76666, emphasizing its small size and tight-knit nature. Another little-known aspect is that despite its rural designation, Mertens is rich in natural beauty, making it a serene spot for those seeking a peaceful retreat.

ZIP codes for Mertens, TX (1)

ZIP code	City	County	Map
76666	Mertens	Hill	View map

Demographics & statistics

186

Population

31.4

Median age

$41,042

Median household income

$26,834

Per capita income

$118,800

Median home value

Median monthly rent

57.0%

Home ownership

12.9%

Poverty rate

0.0%

Unemployment

Housing units

10.1%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← 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

$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%
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	%
High blood pressure	42.3%
High cholesterol	41.0%
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	%
Binge drinking	15.5%
No physical activity	26.0%
Less than 7 hrs sleep	32.0%
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%
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

What is the ZIP code for Mertens, TX?

Mertens, TX has one ZIP code: 76666.

What is the main ZIP code for Mertens, TX?

The primary ZIP code for Mertens, TX is 76666. The city uses area code 254 for phone service.

What county is Mertens, TX in?

Mertens is located in Hill County, Texas.

How many ZIP codes are in Mertens, TX?

Mertens, TX has 1 ZIP code.

What is the ZIP code for mail delivery in downtown Mertens, Texas?

The ZIP code for Mertens, Texas is 76666, which covers the entire city including its downtown area.

If I'm sending a package to a business in Mertens, Hill County, what ZIP code should I use?

All addresses in Mertens, Texas use the ZIP code 76666, regardless of the specific location within the city.