Byrnes Mill, Missouri

Byrnes Mill, Missouri
Location of Byrnes Mill, Missouri
Coordinates: 38°26′22″N 90°34′27″W / 38.43944°N 90.57417°W / 38.43944; -90.57417
CountryUnited States
StateMissouri
CountyJefferson
Government
 • Mayor Pro TemRob Kiczenski
Area
 • Total
5.26 sq mi (13.63 km2)
 • Land5.14 sq mi (13.32 km2)
 • Water0.12 sq mi (0.32 km2)
Elevation
594 ft (181 m)
Population
 (2020)
 • Total
3,173
 • Density617/sq mi (238.3/km2)
Time zoneUTC-6 (Central (CST))
 • Summer (DST)UTC-5 (CDT)
ZIP code
63051
Area code636
FIPS code29-10240
GNIS feature ID2393486
Websitewww.byrnesmill.org

Byrnes Mill is a city in northern Jefferson County, Missouri, United States. The population was 3,173 at the 2020 census.