Carbon, IA Profile: Facts, Map & Data


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Carbon, Iowa - Basic Facts

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The City of Carbon had a population of 33 as of July 1, 2016. Carbon ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Carbon is located at latitude 41.0497 and longitude -94.824 in Adams County. The formal boundaries for the City of Carbon (see map below) encompass a land area of 0.71 sq. miles and a water area of 0 sq. miles. Adams County is in the Central time zone (GMT -6). The elevation is 1,132 feet.

The City of Carbon (GNIS ID: 2393738) 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 Carbon is located within Township of Douglas, a minor civil division (MCD) of Adams County.

Beneath the boundary map are tables with Carbon population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Carbon, IA Boundary Map

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Boundary Maps: Township of Douglas | Adams County | Iowa Counties

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Carbon, IA Data & Demographics (As of July 1, 2016)


Total Population 33
Population in Households 33
Population in Familes 28
Population in Group Qrtrs 0
Population Density1 47
Diversity Index2 6


Total Households 18
Average Household Size 1.83
Family Households 13
Average Family Size 2


Total Housing Units 21 (100%)
Owner Occupied HU 15 (71.4%)
Renter Occupied HU 3 (14.3%)
Vacant Housing Units 3 (14.3%)
Median Home Value $125,000
Average Home Value $140,000


Median Household Income $52,078
Average Household Income $65,566
Per Capita Income $30,955
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.48% -0.61%
Households 0.0% -1.14%
Families 13.17% -1.59%
Median Household Income   2.83%
Per Capita Income   2.75%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Carbon, IA - Peer Comparisons by Rank and Percentile

The table below compares Carbon to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2016 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 # 991 2nd
Population Density1 # 996 1st
Diversity Index2 # 760 24th
Median Household Income # 526 48th
Per Capita Income # 229 77th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.