Byrnes Mill, MO Profile: Facts, Map & Data


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Byrnes Mill, Missouri - Basic Facts

The City of Byrnes Mill had a population of 2,932 as of July 1, 2017.

The primary coordinate point for Byrnes Mill is located at latitude 38.4402 and longitude -90.5746 in Jefferson County. The formal boundaries for the City of Byrnes Mill (see map below) encompass a land area of 5.14 sq. miles and a water area of 0.12 sq. miles. Jefferson County is in the Central time zone (GMT -6). The elevation is 469 feet.

The City of Byrnes Mill (GNIS ID: 2393486) 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 Byrnes Mill is located within Township of High Ridge, a minor civil division (MCD) of Jefferson County.

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

Neighborhood Data

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City of Byrnes Mill, MO Boundary Map

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Boundary Maps: Township of High Ridge | Jefferson County | Missouri Counties

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


Total Population 2,932
Daytime Population: Workers 317
Daytime Population: Residents 1,459
Total Daytime Population (TDP) 1,776
Ratio TDP/Total Population1 0.61
Population in Households 2,932
Population in Familes 2,478
Population in Group Qrtrs 0
Population Density2 570
Diversity Index3 12


Median Household Income $60,052
Average Household Income $72,825
Per Capita Income $26,933


Total Housing Units 1,186 (100%)
Owner Occupied HU 941 (79.3%)
Renter Occupied HU 156 (13.2%)
Vacant Housing Units 89 ( 7.5%)
Median Home Value $176,977
Average Home Value $209,713


Total Households 1,097
Average Household Size 2.67
Family Households 821
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 0.73% 0.73%
Households 0.77% 0.74%
Families 0.67% 0.67%
Median Household Income   3.15%
Per Capita Income   3.26%

Byrnes Mill, MO - Peer Comparisons by Rank and Percentile

The table below compares Byrnes Mill 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 # 205 80th
Population Density # 665 36th
Diversity Index # 612 41st
Median Household Income # 154 85th
Per Capita Income # 242 77th

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

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