Martinsburg, MO Profile: Facts & Data

Martinsburg, Missouri - Basic Facts

The Town of Martinsburg had a population of 244 as of July 1, 2025.

The primary coordinate point for Martinsburg is located at latitude 39.1023 and longitude -91.6477 in Audrain County. The formal boundaries for the Town of Martinsburg encompass a land area of 0.27 sq. miles and a water area of 0 sq. miles. Audrain County is in the Central time zone (GMT -6).

The Town of Martinsburg has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Town of Martinsburg is located within Township of Loutre, a minor civil division (MCD) of Audrain County.

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Martinsburg, MO Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	244 (100%)
Population in Households	244 (100.0%)
Population in Families	169 (69.3%)
Population in Group Quarters¹	0
Population Density	893
Diversity Index²	24


INCOME
Median Household Income	$47,400
Average Household Income	$81,703
% of Income for Mortgage⁴	31%
Per Capita Income	$37,168
Wealth Index⁵	68
Socioeconomic Status Index⁶	Moderate (61.4)

HOUSING
Total HU (Housing Units)	135 (100%)
Owner Occupied HU	97 (71.9%)
Renter Occupied HU	14 (10.4%)
Vacant Housing Units	24 (17.8%)
Median Home Value	$230,556
Average Home Value	$277,242
Housing Affordability Index³	76

HOUSEHOLDS
Total Households	111
Average Household Size	2.20
Family Households	60
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

135 (100%)

Owner Occupied HU

97 (71.9%)

Renter Occupied HU

14 (10.4%)

Vacant Housing Units

24 (17.8%)

Median Home Value

$230,556

Average Home Value

$277,242

Housing Affordability Index³

HOUSEHOLDS

Total Households

111

Average Household Size

2.20

Family Households

Average Family Size

3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.54%	2.86%
Households	-0.84%	1.23%
Families		6.71%
Median Household Income		10.47%
Per Capita Income		1.00%
Owner Occupied HU		0.61%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

-0.54%

2.86%

Households

-0.84%

1.23%

Families

6.71%

Median Household Income

10.47%

Per Capita Income

1.00%

Owner Occupied HU

0.61%

Martinsburg, MO - Peer Comparisons by Rank and Percentile

The table below compares Martinsburg to the other 1,082 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 662	39th
Population Density	# 393	64th
Median Household Income	# 878	19th
Housing Affordability Index	# 326	30th
Per Capita Income	# 371	66th
Diversity Index	# 435	60th

Variable Description

Rank

Percentile

Total Population

# 662

39th

Population Density

# 393

64th

Median Household Income

# 878

19th

Housing Affordability Index

# 326

30th

Per Capita Income

# 371

66th

Diversity Index

# 435

60th

Missouri Census Data Comparison Tool

Martinsburg, MO Profile: Facts & Data

Martinsburg, Missouri - Basic Facts

Martinsburg, MO Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Martinsburg, MO - Peer Comparisons by Rank and Percentile

Martinsburg, MO - Most Popular Things to Do

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Audrain County