Armstrong ZIP Code List — Howard County, MO

There is one unique ZIP code in Armstrong, Missouri and it is 65230. Area code: 660.

ZIP codes

65.47

sq mi land

0.15

sq mi water

660

area code

Armstrong, MO ZIP code map

About Armstrong, MO

Armstrong is a small city located in Howard County, Missouri, known for its serene rural atmosphere and tight-knit community. The city offers a glimpse into the charm of Midwestern living, surrounded by beautiful landscapes and agricultural fields. With a single ZIP code, 65230, Armstrong has a unique identity within the county.

Location & geography

Armstrong is situated in central Missouri, approximately 10 miles southwest of the larger city of Boonville and around 20 miles northwest of Columbia. The area covers a total land area of 65.47 square miles, with a minor water area of 0.15 square miles. The terrain is primarily flat, characterized by farmland and pasture, making it a picturesque snapshot of rural Missouri.

Community & economy

The community of Armstrong is known for its friendly atmosphere, where residents often participate in local events and support one another. Agriculture is a key industry in the area, contributing significantly to the local economy and culture. Daily life in Armstrong reflects a slower pace, allowing residents to connect with nature and each other in meaningful ways.

Transportation

Armstrong is accessible via several county roads, with nearby major routes including U.S. Highway 40, providing connections to larger regional centers. The nearest named airports are in Columbia, about 20 miles away, offering both commercial and general aviation services. Public transportation options are limited, reflecting the city's rural nature.

History

Armstrong was founded in the late 19th century, primarily as a stop along the railroad, which played an essential role in its development. Over the years, the city has focused on agriculture and small local businesses as key elements of its economy. Notable events in the city's history include various community gatherings and agricultural fairs that celebrate its heritage.

Did you know?

One surprising fact about Armstrong is that, despite its small size, it embodies the quintessential Midwestern spirit of community and hospitality. Additionally, being located in Howard County, Armstrong is part of a region rich in both natural beauty and agricultural heritage.

ZIP codes for Armstrong, MO (1)

ZIP code	City	County	Map
65230	Armstrong	Howard	View map

Demographics & statistics

471

Population

34.5

Median age

$48,750

Median household income

$31,608

Per capita income

$74,400

Median home value

$473

Median monthly rent

85.3%

Home ownership

19.5%

Poverty rate

3.2%

Unemployment

229

Housing units

12.1%

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

← Male

Female →

Age summary

Group	Count	%
Under 18	152	32.3%
18 and over	319	67.7%
65 and over	69	14.6%
Median age	34.5 years

Race & ethnicity

White 89%

Two or more races 7.9%

Black or African American 3.2%

Group	Count	%
White	419	89%
Two or more races	37	7.9%
Black or African American	15	3.2%

Household income

Under $10k 2.6%

$10k–$15k 4.7%

$15k–$25k 2.6%

$25k–$35k 29.5%

$35k–$50k 12.6%

$50k–$75k 20.0%

$75k–$100k 16.8%

$100k–$150k 0.5%

$150k–$200k 4.2%

$200k+ 6.3%

Range	% of households
Under $10k	2.6%
$10k–$15k	4.7%
$15k–$25k	2.6%
$25k–$35k	29.5%
$35k–$50k	12.6%
$50k–$75k	20.0%
$75k–$100k	16.8%
$100k–$150k	0.5%
$150k–$200k	4.2%
$200k+	6.3%
Median income	$48,750

Housing

Home values

Under $50k 36.4%

$50k–$100k 21.6%

$100k–$150k 13.0%

$150k–$200k 3.7%

$200k–$300k 7.4%

$300k–$500k 9.3%

$500k–$1M 1.9%

$1M+ 6.8%

Housing overview

Metric	Value
Median home value	$74,400
Median rent / month	$473
Owner occupied	85.3%
Renter occupied	14.7%
Vacant	26.1%
Single-family detached	87.5%
Large apartment buildings	0.0%
Mobile homes	12.5%
Median rooms	5.8
Avg household size (owned)	2.12

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	14.4%
1990–1999	10.9%
1980–1989	3.5%
1970–1979	17.5%
1960–1969	5.1%
1950–1959	5.4%
1940–1949	3.5%
1939 or earlier	39.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	5.4%
2 bedrooms	20.6%
3 bedrooms	58.0%
4 bedrooms	14.4%
5+ bedrooms	1.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.3%
1 vehicle	29.5%
2 vehicles	50.5%
3 or more	13.7%

Heating fuel

Fuel type	%
Utility gas	23.7%
Electricity	36.8%
Propane / LP gas	22.6%
Wood	11.6%

Households & families

Household type	Count	%
Married-couple family	61	32.1%
Cohabiting couple	6	3.2%
Male householder, no spouse	33	17.4%
Female householder, no spouse	90	47.4%
Households with children under 18	77	40.5%
Households with seniors (65+)	56	29.5%
Average household size	2.33

Marital status

Status	Male	Female
Never married	32.8%	40.6%
Married	50.0%	29.2%
Separated	0.8%	0.0%
Widowed	9.8%	11.3%
Divorced	6.6%	18.9%

Education

Less than 9th grade 7.5%

Some HS, no diploma 5.9%

HS graduate 52.3%

Some college, no degree 15.7%

Associate's degree 6.5%

Bachelor's degree 8.8%

Graduate / professional 3.3%

Metric	%
HS diploma or higher	86.6%
Bachelor's or higher	12.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	22	18.8%
Kindergarten	4	3.4%
Elementary school	71	60.7%
High school	15	12.8%
College / grad school	5	4.3%

Employment

Industry of employment

Education & healthcare 45.7%

Other services 12.9%

Manufacturing 11.0%

Professional & management 6.2%

Retail trade 5.7%

Agriculture & mining 4.8%

Construction 4.3%

Wholesale trade 3.8%

Public administration 3.8%

Finance & real estate 1.0%

Arts, food & hospitality 1.0%

Occupation

Category	%
Management, business & arts	34.8%
Service	16.7%
Sales & office	16.2%
Natural resources & construction	13.8%
Production & transportation	18.6%

Employment type

Type	%
Private sector	85.7%
Government	8.1%
Self-employed	6.2%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	96.1%
Carpool	1.9%
Public transit	0.0%
Walk	1.0%
Other means	1.0%
Avg commute (minutes)	26.9

Poverty

All people 19.5%

Under 18 years 19.1%

18 and over 19.7%

Married-couple families 16.4%

Female-led households 5.9%

Income support

Source	% of households
Social Security	24.2%
Retirement income	22.6%
Supplemental Security	4.2%
Cash public assistance	15.8%
Food stamps / SNAP	25.8%

Health indicators

Condition	%
High blood pressure	33.7%
High cholesterol	36.3%
Heart disease	7.8%
Stroke	3.6%
Asthma	9.7%
Arthritis	30.6%
Kidney disease	3.2%
Pulmonary disease	9.2%
Cancer	7.5%

Behavior / access	%
Binge drinking	16.5%
No physical activity	27.1%
Less than 7 hrs sleep	33.2%
Fair or poor health	17.3%
Poor mental health	15.5%
Poor physical health	12.6%
No health insurance	14.9%
Visited doctor (checkup)	74.7%
Visited dentist	59.3%
Cholesterol screening	89.0%
Teeth loss	18.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	21	6.6%

Disability	%
Any disability	14.4%
Under 18	0.0%
18–64 years	18.8%
65 and over	30.4%

Health insurance coverage

Type	%
Private insurance	46.5%
Public insurance	54.6%
Uninsured under 19	14.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	414	87.9%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	471	100.0%
Born in same state	471	100.0%
Born in different state	417	88.5%
Foreign born	0	0.0%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	87	18.5%
French	48	10.2%
English	12	2.5%

Ancestry	Count	%
Italian	11	2.3%
Polish	1	0.2%

Technology access

Metric	% of households
Computer access	40.3%
Internet access	90.0%

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

Frequently asked questions

What is the ZIP code for Armstrong, MO?

Armstrong, MO has one ZIP code: 65230.

What is the main ZIP code for Armstrong, MO?

The primary ZIP code for Armstrong, MO is 65230. The city uses area code 660 for phone service.

What county is Armstrong, MO in?

Armstrong is located in Howard County, Missouri.

How many ZIP codes are in Armstrong, MO?

Armstrong, MO has 1 ZIP code.

What is the ZIP code for Armstrong's downtown area and main business district?

Armstrong's downtown area is located in ZIP code 65230, which serves as the central business district for this small Howard County community.

What ZIP code should I use when mailing correspondence to Armstrong, Missouri?

All mail sent to Armstrong, Missouri should be addressed to ZIP code 65230, as this is the sole ZIP code serving the entire city.