St. Louis County Plat Maps (Missouri)

Search for St. Louis County, MO plat maps. Plat maps include information on property lines, lots, plot boundaries, streets, flood zones, public access, parcel numbers, lot dimensions, and easements.


Clerks maintain and preserve important public records for a county or local government, including detailed local maps such as plat maps in St. Louis County, MO. These St. Louis County plat maps show the property boundaries in a neighborhood, including lots and their dimensions, boundary locations, streets and street numbers, and parcel numbers. These St. Louis County maps contain important information for prospective buyers who may be concerned about easements, rights of way, flood zones, and public access on a particular plot of land. Clerks often provide online access to plat maps.

Chesterfield City Clerk Chesterfield MO 690 Chesterfield Parkway West 63017 636-537-4711

Ellisville Clerk Ellisville MO 37 Weis Avenue 63011 636-227-3729

Eureka Clerk Eureka MO 120 City Hall Drive 63025 636-938-6600

Ferguson City Clerk Ferguson MO 110 Church Street 63135 314-524-5152

Maryland Heights City Clerk Maryland Heights MO 11911 Dorsett Road 63043 314-291-6550

St Louis County Clerk Maplewood MO 12 Sunnen Drive 63143 417-741-6661

St Louis County Clerk Clayton MO 41 South Central Avenue 63105 314-615-7041

Webster Groves Clerk Webster Groves MO 4 East Lockwood Avenue 63119 314-963-5416

Wildwood City Clerk Wildwood MO 183 Plaza Drive 63040 636-458-0440


Assessors are responsible for determining the value of taxable property within St. Louis County, MO. These property assessments are used to levy property taxes. In addition, St. Louis County Assessors maintain detailed neighborhood maps that contain information about the properties. These plat maps include all the lots in a tract of land, boundary locations, street numbers, property lines, and lot dimensions. St. Louis County plat maps also show any easements or rights of way. Assessors are responsible for assigning a parcel number to each lot, which appears on the map. Plat maps may be available online through the Assessor's website.

St Louis County Assessor Clayton MO 41 South Central Avenue 63105 314-615-1500

St Louis County Assessor's Office Clayton MO 41 South Central Avenue 63105 314-615-0124


Treasurers and Tax Collectors are responsible for collecting taxes at the local level and distributing these funds in St. Louis County, MO. In order to collect St. Louis County property taxes, the Treasurer and Tax Collector typically maintains maps covering its jurisdiction, including plat maps. These plat maps provide detailed information on a neighborhood or local area, including property boundaries and divisions, lot dimensions, parcel and street numbers, and land sizes. St. Louis County plat maps also contain important information for prospective buyers about flood zones, easements, rights of way, and public access. The St. Louis County Treasurer and Tax Collector may provide online access to plat maps on its website.

St Louis County Treasurer Clayton MO 41 South Central Avenue 63105 314-615-7053

St Louis Treasurer Maplewood MO 2508 Sutton Boulevard 63143 314-645-0555

St. Charles County Tax Collector's Office Clayton MO 41 South Central Avenue 63105 573-633-2271

St. Clair County Tax Collector's Office Clayton MO 41 South Central Avenue 63105 573-633-2271

St. Francois County Tax Collector's Office Clayton MO 41 South Central Avenue 63105 573-633-2271