Lamar, MO Profile: Facts & Data

Lamar, Missouri - Basic Facts

The City of Lamar had a population of 4,302 as of July 1, 2025.

The primary coordinate point for Lamar is located at latitude 37.495 and longitude -94.2766 in Barton County. The formal boundaries for the City of Lamar encompass a land area of 5.12 sq. miles and a water area of 0.31 sq. miles. Barton County is in the Central time zone (GMT -6).

The City of Lamar 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 City of Lamar is located within Township of City, a minor civil division (MCD) of Barton County.

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

POPULATION
Total Population	4,302 (100%)
Population in Households	4,286 (99.6%)
Population in Families	3,213 (74.7%)
Population in Group Quarters¹	16 ( 0.4%)
Population Density	825
Diversity Index²	26


INCOME
Median Household Income	$39,150
Average Household Income	$60,190
% of Income for Mortgage⁴	22%
Per Capita Income	$25,331
Wealth Index⁵	38
Socioeconomic Status Index⁶	Moderate (47.0)

HOUSING
Total HU (Housing Units)	2,030 (100%)
Owner Occupied HU	1,117 (55.0%)
Renter Occupied HU	693 (34.1%)
Vacant Housing Units	220 (10.8%)
Median Home Value	$140,234
Average Home Value	$188,328
Housing Affordability Index³	98

HOUSEHOLDS
Total Households	1,810
Average Household Size	2.37
Family Households	1,105
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

2,030 (100%)

Owner Occupied HU

1,117 (55.0%)

Renter Occupied HU

693 (34.1%)

Vacant Housing Units

220 (10.8%)

Median Home Value

$140,234

Average Home Value

$188,328

Housing Affordability Index³

HOUSEHOLDS

Total Households

1,810

Average Household Size

2.37

Family Households

1,105

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	0.16%	-0.08%
Households	-0.09%	-0.14%
Families		-0.15%
Median Household Income		1.96%
Per Capita Income		0.98%
Owner Occupied HU		0.39%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

0.16%

-0.08%

Households

-0.09%

-0.14%

Families

-0.15%

Median Household Income

1.96%

Per Capita Income

0.98%

Owner Occupied HU

0.39%

Lamar, MO - Peer Comparisons by Rank and Percentile

The table below compares Lamar 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	# 168	85th
Population Density	# 444	59th
Median Household Income	# 1022	6th
Housing Affordability Index	# 464	43rd
Per Capita Income	# 892	18th
Diversity Index	# 384	65th

Variable Description

Rank

Percentile

Total Population

# 168

85th

Population Density

# 444

59th

Median Household Income

# 1022

6th

Housing Affordability Index

# 464

43rd

Per Capita Income

# 892

18th

Diversity Index

# 384

65th

Missouri Census Data Comparison Tool

Lamar, MO Profile: Facts & Data

Lamar, Missouri - Basic Facts

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

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Lamar, MO - Peer Comparisons by Rank and Percentile

Lamar, MO - Most Popular Things to Do

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Barton County