Hazelwood is one of the largest cities in St. Louis County located near St. Louis Lambert International Airport. The City of Hazelwood has a population of nearly 26,000 residents and covers 16.5 square miles.

The City and Village Tax Office collect licenses, Real Property, Personal Property, and Special Tax bills for 10 municipalities and has grown to over 850 subdivision accounts throughout St. Louis, Jefferson, St. Charles, Franklin, and Illinois counties.

Hazelwood School District is a school district in suburban St. Louis, Missouri and is the second largest district in St. Louis County.

The Missouri Department of Revenue is a state government agency responsible for the collection and distribution of state revenue, and administration of state laws governing driver licensing, and motor vehicle sale and registration.

MoDot is in charge of maintaining he public roadways of the state of Missouri under the guidance of the Missouri Highways and Transportation Commission.

Ameren UE is a American Power company based in St. Louis servicing customer s in Missouri and Illinois.

The St. Louis County Library is a public library in Missouri consisting of 20 branches and supported by the St. Louis County Library District.

The Assessor's Office assesses real and personal property and keeps records of all real estate transactions. The Assessor also keeps current record of property ownership.

Spire Gas Company is the fifth largest publicly traded natural gas company in the country that services families and business owners in Alabama, Mississippi and Missouri.

The Metropolitan Sewer District serves approximately 1.3 million people over 520 square miles and five major watersheds in the land bordered by Highway 109 on the west to the Mississippi, Missouri, and Meramac Rivers. The current systems consist of wastewater, stormwater and combined collection sewers, pumping stations, and wastewater treatment facilities.

Missouri American Water is a local water and waste company serving 1.5 million people.