Monmouth, IA Profile: Facts & Data


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Monmouth, Iowa - Basic Facts

The City of Monmouth had a population of 160 as of July 1, 2018. Monmouth ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.

The primary coordinate point for Monmouth is located at latitude 42.0751 and longitude -90.8822 in Jackson County. The formal boundaries for the City of Monmouth (see map below) encompass a land area of 0.56 sq. miles and a water area of 0 sq. miles. Jackson County is in the Central time zone (GMT -6). The elevation is 748 feet.

The City of Monmouth (GNIS ID: 2395372) 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 Monmouth is located within Township of Monmouth, a minor civil division (MCD) of Jackson County.

Beneath the boundary map are tables with Monmouth 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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Monmouth, IA Data & Demographics (As of July 1, 2018)


Total Population 160
Population in Households 160
Population in Familes 130
Population in Group Qrtrs 0
Population Density1 285
Diversity Index2 9


Median Household Income $52,409
Average Household Income $59,991
Per Capita Income $26,618


Total Housing Units 74 (100%)
Owner Occupied HU 49 (66.2%)
Renter Occupied HU 18 (24.3%)
Vacant Housing Units 7 ( 9.5%)
Median Home Value $100,000
Average Home Value $138,500


Total Households 67
Average Household Size 2.39
Family Households 44
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 0.54% 0.37%
Households 0.75% 0.59%
Families 0.86% 0.45%
Median Household Income   0.51%
Per Capita Income   1.5%

Monmouth, IA - Peer Comparisons by Rank and Percentile

The table below compares Monmouth 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 # 763 24th
Population Density # 800 21st
Diversity Index # 615 39th
Median Household Income # 639 37th
Per Capita Income # 704 30th

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

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Compare Iowa July 1, 2018 Data
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