Diamondhead Lake, IA Profile: Facts & Data

The primary coordinate point for Diamondhead Lake is located at latitude 41.5521 and longitude -94.2622 in Guthrie County. The formal boundaries for the Diamondhead Lake Census Designated Place encompass a land area of 0.62 sq. miles and a water area of 0.16 sq. miles. Guthrie County is in the Central time zone (GMT -6).

The Diamondhead Lake Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Diamondhead Lake Census Designated Place is located within Township of Penn, a minor civil division (MCD) of Guthrie County.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

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

POPULATION
Total Population	403 (100%)
Population in Households	403 (100.0%)
Population in Families	320 (79.4%)
Population in Group Quarters¹	0
Population Density	414
Diversity Index²	19


INCOME
Median Household Income	$81,666
Average Household Income	$108,728
% of Income for Mortgage⁴	17%
Per Capita Income	$45,056
Wealth Index⁵	102
Socioeconomic Status Index⁶	Moderate (56.9)

HOUSING
Total HU (Housing Units)	243 (100%)
Owner Occupied HU	154 (63.4%)
Renter Occupied HU	13 ( 5.3%)
Vacant Housing Units	76 (31.3%)
Median Home Value	$226,389
Average Home Value	$235,909
Housing Affordability Index³	124

HOUSEHOLDS
Total Households	167
Average Household Size	2.41
Family Households	106
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.

Diamondhead Lake, IA - Peer Comparisons by Rank and Percentile

The table below compares Diamondhead Lake 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.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	1.59%	0.25%
Households	1.56%	0.36%
Families		2.34%
Median Household Income		2.84%
Per Capita Income		1.17%
Owner Occupied HU		-0.52%

Variable Description	Rank	Percentile
Total Population	# 494	52nd
Population Density	# 663	35th
Median Household Income	# 357	65th
Housing Affordability Index	# 563	55th
Per Capita Income	# 332	68th
Diversity Index	# 405	61st

Diamondhead Lake, IA Profile: Facts & Data

Diamondhead Lake, Iowa - Basic Facts

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

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Diamondhead Lake, IA - Peer Comparisons by Rank and Percentile

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Guthrie County