Maxwell ZIP Code List — Caldwell County, TX

There is one unique ZIP code in Maxwell, Texas and it is 78656. Area code: 512.

ZIP codes

28.42

sq mi land

0.05

sq mi water

512

area code

Maxwell, TX ZIP code map

About Maxwell, TX

Maxwell is a small town located in the heart of Texas, specifically within Caldwell County. It offers a glimpse into rural life and embodies the charm typical of towns in this part of the state. With a tight-knit community, Maxwell reflects the values and traditions of its residents.

Location & geography

Maxwell, TX, is situated approximately 22 miles southeast of the larger city of Austin and about 15 miles from Lockhart, known for its barbecue. The town's land area encompasses 28.42 square miles, complemented by a small water area of 0.05 square miles. The terrain around Maxwell is primarily flat, characterized by the lush greenery that is often found in Central Texas.

Community & economy

The character of Maxwell is influenced by its agricultural roots, with local industries centered around farming and ranching. Daily life in Maxwell is laid-back, with community gatherings and local events playing a significant role in bringing residents together. The town's residents take pride in their community, fostering a warm and welcoming atmosphere.

Transportation

Maxwell is accessible via U.S. Highway 183, which connects it to other cities in the region. For air travel, residents typically use Austin-Bergstrom International Airport, located about 25 miles to the northwest. The town does not have its own public transit system, relying instead on personal vehicles for transportation.

History

Maxwell was founded as a small agricultural community and has remained largely rural ever since. Agriculture was and still is a key industry, providing livelihoods for many residents. One notable event in the town's history is its incorporation, which marked a significant step in formalizing its community structure.

Did you know?

A little-known fact about Maxwell is that it is home to a few historical markers that celebrate its agricultural heritage. Additionally, visitors can experience Texas culture through local festivals and events that highlight traditional music and food.

ZIP codes for Maxwell, TX (1)

ZIP code	City	County	Map
78656	Maxwell	Caldwell	View map

Demographics & statistics

2,631

Population

32.3

Median age

$56,923

Median household income

$26,711

Per capita income

Median home value

$1,108

Median monthly rent

60.7%

Home ownership

18.9%

Poverty rate

2.1%

Unemployment

550

Housing units

7.6%

Bachelor's or higher

Age distribution

Male Female

180

Under 5

197

107

5–9

118

10–14

15–19

20–24

287

25–34

314

175

35–44

191

45–54

55–59

60–64

110

65–74

121

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	718	27.3%
18 and over	1,913	72.7%
65 and over	253	9.6%
Median age	32.3 years

Race & ethnicity

White 44.2%

Hispanic or Latino 26.1%

Two or more races 23.5%

Black or African American 3.5%

Other race 2.6%

Group	Count	%
White	1,576	44.2%
Hispanic or Latino	931	26.1%
Two or more races	838	23.5%
Black or African American	124	3.5%
Other race	93	2.6%

Household income

Under $10k 1.1%

$10k–$15k 0.3%

$15k–$25k 4.5%

$25k–$35k 9.0%

$35k–$50k 20.0%

$50k–$75k 18.0%

$75k–$100k 26.0%

$100k–$150k 17.2%

$150k–$200k 1.5%

$200k+ 2.4%

Range	% of households
Under $10k	1.1%
$10k–$15k	0.3%
$15k–$25k	4.5%
$25k–$35k	9.0%
$35k–$50k	20.0%
$50k–$75k	18.0%
$75k–$100k	26.0%
$100k–$150k	17.2%
$150k–$200k	1.5%
$200k+	2.4%
Median income	$56,923

Housing

Home values

Under $50k 17.2%

$50k–$100k 33.8%

$100k–$150k 2.4%

$150k–$200k 18.5%

$200k–$300k 14.8%

$300k–$500k 7.7%

$500k–$1M 3.9%

$1M+ 1.7%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$1,108
Owner occupied	60.7%
Renter occupied	39.3%
Vacant	1.7%
Single-family detached	30.2%
Large apartment buildings	0.0%
Mobile homes	57.1%
Median rooms	4.5
Avg household size (owned)	3.18

Year built

Era	%
2020 or later	0.0%
2010–2019	19.5%
2000–2009	14.2%
1990–1999	28.3%
1980–1989	28.4%
1970–1979	0.8%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	6.0%
1939 or earlier	2.8%

Bedrooms

Size	% of units
No bedroom (studio)	4.8%
1 bedroom	4.6%
2 bedrooms	38.8%
3 bedrooms	30.0%
4 bedrooms	21.9%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	5.7%
1 vehicle	43.1%
2 vehicles	25.7%
3 or more	25.5%

Heating fuel

Fuel type	%
Electricity	76.2%
Propane / LP gas	20.1%
Wood	3.7%

Households & families

Household type	Count	%
Married-couple family	313	35.5%
Cohabiting couple	218	24.7%
Male householder, no spouse	253	28.7%
Female householder, no spouse	98	11.1%
Households with children under 18	377	42.7%
Households with seniors (65+)	211	23.9%
Average household size	2.96

Marital status

Status	Male	Female
Never married	50.9%	29.2%
Married	34.5%	48.5%
Separated	0.0%	3.9%
Widowed	2.6%	7.7%
Divorced	12.1%	10.7%

Education

Less than 9th grade 17.7%

Some HS, no diploma 14.6%

HS graduate 23.8%

Some college, no degree 32.3%

Associate's degree 4.0%

Bachelor's degree 6.3%

Graduate / professional 1.3%

Metric	%
HS diploma or higher	67.8%
Bachelor's or higher	7.6%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	29	5.9%
Kindergarten	39	7.9%
Elementary school	191	38.8%
High school	133	27.0%
College / grad school	100	20.3%

Employment

Industry of employment

Education & healthcare 21.4%

Construction 20.7%

Arts, food & hospitality 15.4%

Retail trade 12.8%

Other services 10.5%

Manufacturing 5.8%

Public administration 5.5%

Professional & management 2.5%

Information 2.4%

Transportation & utilities 2.1%

Agriculture & mining 0.7%

Occupation

Category	%
Management, business & arts	17.2%
Service	33.5%
Sales & office	10.4%
Natural resources & construction	23.9%
Production & transportation	15.0%

Employment type

Type	%
Private sector	79.7%
Government	17.7%
Self-employed	2.7%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	92.5%
Carpool	2.6%
Public transit	0.0%
Walk	3.3%
Other means	0.0%
Avg commute (minutes)	25.5

Poverty

All people 18.9%

Under 18 years 27.2%

18 and over 15.8%

Married-couple families 0.0%

Female-led households 52.5%

Income support

Source	% of households
Social Security	25.4%
Retirement income	12.0%
Supplemental Security	4.3%
Cash public assistance	0.0%
Food stamps / SNAP	1.7%

Health indicators

Condition	%
High blood pressure	34.4%
High cholesterol	31.4%
Heart disease	6.2%
Stroke	3.1%
Asthma	9.4%
Arthritis	21.1%
Kidney disease	3.2%
Pulmonary disease	6.8%
Cancer	4.5%

Behavior / access	%
Binge drinking	17.8%
No physical activity	34.4%
Less than 7 hrs sleep	33.9%
Fair or poor health	24.0%
Poor mental health	17.0%
Poor physical health	13.8%
No health insurance	40.2%
Visited doctor (checkup)	67.8%
Visited dentist	45.0%
Cholesterol screening	85.5%
Teeth loss	18.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	92	4.8%

Disability	%
Any disability	14.6%
Under 18	0.0%
18–64 years	14.3%
65 and over	58.5%

Health insurance coverage

Type	%
Private insurance	42.8%
Public insurance	33.5%
Uninsured under 19	10.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,254	85.7%
Spanish	354	15.7%
Other Indo-European	354	15.7%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,187	83.1%
Born in same state	2,134	81.1%
Born in different state	1,832	69.6%
Foreign born	53	2.0%
Naturalized citizen	444	16.9%
Not a US citizen	115	25.9%

Ancestry

Ancestry	Count	%
French	92	3.5%
Italian	73	2.8%

Ancestry	Count	%
Arab	39	1.5%

Technology access

Metric	% of households
Computer access	33.5%
Internet access	93.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Maxwell, TX?

Maxwell, TX has one ZIP code: 78656.

What is the main ZIP code for Maxwell, TX?

The primary ZIP code for Maxwell, TX is 78656. The city uses area code 512 for phone service.

What county is Maxwell, TX in?

Maxwell is located in Caldwell County, Texas.

How many ZIP codes are in Maxwell, TX?

Maxwell, TX has 1 ZIP code.

What ZIP code should I use when mailing correspondence to businesses in downtown Maxwell, TX?

All mail destined for Maxwell, TX uses the ZIP code 78656, which covers the entire city including the downtown area.

If I'm shipping a package to a residence in Maxwell, Caldwell County, what is the correct ZIP code to use?

Packages and mail to any residential address in Maxwell should be addressed to ZIP code 78656, which is the sole ZIP code serving Maxwell.