Barnum, IA Profile: Facts & Data

Barnum, Iowa - Basic Facts

The City of Barnum had a population of 163 as of July 1, 2025.

The primary coordinate point for Barnum is located at latitude 42.5086 and longitude -94.3652 in Webster County. The formal boundaries for the City of Barnum encompass a land area of 0.37 sq. miles and a water area of 0 sq. miles. Webster County is in the Central time zone (GMT -6).

The City of Barnum 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 Barnum is located within Township of Johnson, a minor civil division (MCD) of Webster County.

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Barnum, IA Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	163 (100%)
Population in Households	163 (100.0%)
Population in Families	141 (86.5%)
Population in Group Quarters¹	0
Population Density	435
Diversity Index²	22


INCOME
Median Household Income	$100,000
Average Household Income	$148,274
% of Income for Mortgage⁴	19%
Per Capita Income	$61,857
Wealth Index⁵	162
Socioeconomic Status Index⁶	Moderate (50.7)

HOUSING
Total HU (Housing Units)	70 (100%)
Owner Occupied HU	67 (95.7%)
Renter Occupied HU	1 ( 1.4%)
Vacant Housing Units	2 ( 2.9%)
Median Home Value	$295,833
Average Home Value	$370,485
Housing Affordability Index³	114

HOUSEHOLDS
Total Households	68
Average Household Size	2.40
Family Households	49
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

70 (100%)

Owner Occupied HU

67 (95.7%)

Renter Occupied HU

1 ( 1.4%)

Vacant Housing Units

2 ( 2.9%)

Median Home Value

$295,833

Average Home Value

$370,485

Housing Affordability Index³

114

HOUSEHOLDS

Total Households

Average Household Size

2.40

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	-1.34%	-0.62%
Households	-0.55%	-0.60%
Families		1.20%
Median Household Income		4.56%
Per Capita Income		4.15%
Owner Occupied HU		-1.86%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

-1.34%

-0.62%

Households

-0.55%

-0.60%

Families

1.20%

Median Household Income

4.56%

Per Capita Income

4.15%

Owner Occupied HU

-1.86%

Barnum, IA - Peer Comparisons by Rank and Percentile

The table below compares Barnum to the other 1,026 incorporated cities, towns and CDPs in Iowa 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	# 730	29th
Population Density	# 651	37th
Median Household Income	# 135	88th
Housing Affordability Index	# 476	46th
Per Capita Income	# 50	95th
Diversity Index	# 299	71st

Variable Description

Rank

Percentile

Total Population

# 730

29th

Population Density

# 651

37th

Median Household Income

# 135

88th

Housing Affordability Index

# 476

46th

Per Capita Income

# 50

95th

Diversity Index

# 299

71st

Iowa Census Data Comparison Tool

Barnum, IA Profile: Facts & Data

Barnum, Iowa - Basic Facts

Barnum, IA Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Barnum, IA - Peer Comparisons by Rank and Percentile

Barnum, IA - Most Popular Things to Do

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