Martinsburg, IA Profile: Facts & Data


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Martinsburg, Iowa - Basic Facts

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The City of Martinsburg had a population of 106 as of July 1, 2018. Martinsburg 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 Martinsburg is located at latitude 41.1787 and longitude -92.2519 in Keokuk County. The formal boundaries for the City of Martinsburg (see map below) encompass a land area of 0.38 sq. miles and a water area of 0 sq. miles. Keokuk County is in the Central time zone (GMT -6). The elevation is 804 feet.

The City of Martinsburg (GNIS ID: 2395031) 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 Martinsburg is located within Township of Steady Run, a minor civil division (MCD) of Keokuk County.

Beneath the boundary map are tables with Martinsburg population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

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Martinsburg, IA Data & Demographics (As of July 1, 2018)


Total Population 106
Population in Households 106
Population in Familes 90
Population in Group Qrtrs 0
Population Density1 283
Diversity Index2 6


Median Household Income $54,581
Average Household Income $63,297
Per Capita Income $27,135


Total Housing Units 53 (100%)
Owner Occupied HU 34 (64.2%)
Renter Occupied HU 10 (18.9%)
Vacant Housing Units 9 (17.0%)
Median Home Value $108,333
Average Home Value $205,714


Total Households 44
Average Household Size 2.41
Family Households 33
Average Family Size 3
  1. Population Density = Total Population per square mile.
  2. 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 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.


2010-2017 2017-2022
Population -0.67% -0.77%
Households -0.8% -0.46%
Families 0.37% -0.61%
Median Household Income   2.58%
Per Capita Income   2.4%

Martinsburg, IA - Peer Comparisons by Rank and Percentile

The table below compares Martinsburg to the other 1,009 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2018 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 # 857 15th
Population Density # 804 20th
Diversity Index # 840 17th
Median Household Income # 539 47th
Per Capita Income # 653 35th

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

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