Milan Assessor. Find Milan Illinois assessor, assessment, auditor's, and appraiser's office, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records. Milan Assessor.
1. San Bernadino, California (20,105 square miles) San Bernardino County in California is the largest county in the United States, at 20,105 square miles including both land and water surface area. San Bernardino is also the fifth largest county in terms of population, with 2,035,210 people as of the 2010 census.
Residents. Los Angeles County has the largest population of any county in the nation, exceeded by only eight states. More than 1 million of the 10.4 million residents live in unincorporated areas, whose municipal services are provided by the County. The other 9.3 million live in 88 cities, located throughout a 4,084-square-mile area.