Rolla, MO Profile: Facts, Map & Data


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Rolla, Missouri - Basic Facts

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The City of Rolla had a population of 20,021 as of July 1, 2017. Rolla ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Missouri. See peer rankings below.

The primary coordinate point for Rolla is located at latitude 37.9459 and longitude -91.7612 in Phelps County. The formal boundaries for the City of Rolla (see map below) encompass a land area of 12.03 sq. miles and a water area of 0.02 sq. miles. Phelps County is in the Central time zone (GMT -6). The elevation is 1,119 feet.

The City of Rolla (GNIS ID: 2396418) 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 Rolla is located within Township of Rolla, a minor civil division (MCD) of Phelps County.

Beneath the boundary map are tables with Rolla population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Rolla: Weber.

Neighborhood Data

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City of Rolla, MO Boundary Map

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Boundary Maps: Township of Rolla | Phelps County | Missouri Counties

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Rolla, MO Data & Demographics (As of July 1, 2017)


Total Population 20,021
Daytime Population: Workers 15,649
Daytime Population: Residents 12,045
Total Daytime Population (TDP) 27,694
Ratio TDP/Total Population1 1.38
Population in Households 17,658
Population in Familes 11,387
Population in Group Qrtrs 2,363
Population Density2 1,664
Diversity Index3 33


Median Household Income $35,345
Average Household Income $50,962
Per Capita Income $20,353


Total Housing Units 8,587 (100%)
Owner Occupied HU 3,223 (37.5%)
Renter Occupied HU 4,474 (52.1%)
Vacant Housing Units 890 (10.4%)
Median Home Value $126,135
Average Home Value $153,321


Total Households 7,697
Average Household Size 2.29
Family Households 3,880
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 0.32% 0.21%
Households 0.22% 0.18%
Families 0.42% 0.0%
Median Household Income   0.36%
Per Capita Income   1.51%

Rolla, MO - Peer Comparisons by Rank and Percentile

The table below compares Rolla to the other 1,032 incorporated cities, towns and CDPs in Missouri by rank and percentile using July 1, 2017 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 # 38 96th
Population Density # 137 87th
Diversity Index # 134 87th
Median Household Income # 806 22nd
Per Capita Income # 698 32nd

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

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