Cities in Jefferson County, Missouri by Population (2024)

There are 37 cities in Jefferson County, Missouri.

Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Wildwood1Missouri34,52435,384-0.62%51866.68
Arnold2Missouri20,82920,861-0.04%1,80711.53
Eureka3Missouri13,69611,7623.66%1,22911.14
Festus4Missouri13,66412,7221.76%2,3145.91
Murphy5Missouri8,4818,3730.32%2,1953.86
Pacific6Missouri7,6087,2601.16%1,1136.84
Valley Park7Missouri6,6636,873-0.77%1,4804.50
Bonne Terre8Missouri6,4656,869-1.54%1,5894.07
De Soto9Missouri6,4526,4500.02%1,4724.38
Pevely10Missouri6,0136,041-0.12%1,1895.06
Imperial11Missouri5,8234,9473.91%1,1115.24
Herculaneum12Missouri5,6164,7144.19%1,3514.16
Barnhart13Missouri5,4046,676-5.56%1,0904.96
High Ridge14Missouri5,0454,2574.06%1,3383.77
Desloge15Missouri4,9384,8280.57%1,6922.92
Crystal City16Missouri4,6854,735-0.26%1,0384.51
Fenton17Missouri4,0104,114-0.64%6396.27
Hillsboro18Missouri3,4973,4890.06%9103.84
Byrnes Mill19Missouri3,1673,177-0.06%6165.14
Gray Summit20Missouri2,7632,3833.56%3597.71
Terre Lac21Missouri2,5042,3821.25%3586.99
Raintree Plantation22Missouri1,9301,9802.66%9881.95
Cedar Hill23Missouri1,2811,625-6.29%5582.29
LaBarque Creek24Missouri1,2371,1651.48%7017.57
Leadwood25Missouri1,1741,1740%1,0151.16
Summer Set26Missouri1,1481,030-0.86%1,2590.91
Horine27Missouri1,0131,0903.47%1,4230.71
Lake Timberline28Missouri7305486.73%3072.38
Bloomsdale29Missouri7096412.46%4361.63
Olympian Village30Missouri709719-0.28%1,3610.52
Briarwood Estates31Missouri3032554.12%4460.68
Lake Tekakwitha32Missouri2352310.43%1,1750.20
Cedar Hill Lakes33Missouri2022040%9310.22
Scotsdale34Missouri1951930.52%3360.58
Parkdale35Missouri1541560%1,2030.13
Kimmswick36Missouri1331350%5680.23
Peaceful Village37Missouri95931.06%4850.20
showing: 37 rows

Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.

What is the largest city in Jefferson County, Missouri?

Wildwood is the largest city in Jefferson County.

What is the smallest city in Jefferson County, Missouri?

Peaceful Village is the smallest city in Jefferson County.

How many cities are in Jefferson County?

There are 37 cities in Jefferson County, Missouri.

Frequently Asked Questions