Lewis and Clark County GIS Portal

Search for Lewis and Clark County MT GIS maps. A GIS map search can provide information like county maps, town maps, city maps, local maps, property maps, parcel maps, plat maps, public property, property tax assessments, flood zones, zoning boundaries, geographic information, historical maps, and property tax information.


Lewis and Clark County Assessor Offices are charged with determining the value of taxable property in their county or local area in order to calculate Lewis and Clark County property taxes. In addition to property values, Assessors maintain detailed county and local maps, including Geographic Information Science (GIS) maps. These Lewis and Clark County GIS maps can show public property, parks, property divisions, and roads, as well as property assessments and property taxes in Lewis and Clark County Montana. These maps can also include place names, bodies of water, flood zones, property zones, and other geographic information. Some Assessors may keep historic GIS maps that include historic property tax assessments. These maps may be available on the Lewis and Clark County Assessor Office website.

Lewis And Clark County Treasurer Helena MT 316 North Park Avenue 59601 406-447-8304


Lewis and Clark County Town and City Halls provide municipal services for their town or city, including preserving vital records and maintaining records on their jurisdiction such as Lewis and Clark County GIS maps. The GIS maps at a Lewis and Clark County Town or City Hall can include property boundaries, public property, unclaimed parcels, and roads, as well as appraisal values for properties and property tax assessments in Lewis and Clark County Montana. These GIS maps may also show population information, place names, zoning boundaries, bodies of water, flood zones, and other geographic information. Some Town and City Halls also have historical maps of their area. These maps are often available to the public on the Lewis and Clark County Town and City Hall website.

East Helena City Hall East Helena MT 306 East Main Street 59635 406-227-5321

Helena City Hall Helena MT 316 N Park Ave 59601 406-447-8401


Lewis and Clark County Clerk Offices maintain public records for a county or local government, which includes GIS maps. These maps provide detailed information on the area, including Lewis and Clark County property maps that show boundaries, public property, property divisions, and in some cases, population information in Lewis and Clark County Montana. They may also include property value assessments and property tax rates. Lewis and Clark County GIS maps can show place names, bodies of water, zoning information, flood zones, and other geographic information. Clerks may also have historic GIS maps from the USGS or other organizations, and these maps are often available online through the Clerk Office website.

Helena Clerk Helena MT 215 North Sanders Street 59601 406-444-3858

Lewis And Clark County Clerk Helena MT 228 East Broadway Street 59601 406-759-5615


Lewis and Clark County Recorders of Deeds keep real estate records to ensure the accuracy of property and land records. In addition to deeds, Recorders of Deeds also have detailed county and local maps, including Lewis and Clark County GIS maps that show property lines, building information, public property, unclaimed parcels, as well as property value assessments and property tax information. These GIS maps may also include place names, zoning boundaries, bodies of water, flood zones, and other geographic information in Lewis and Clark County Montana. The Recorder of Deeds may also have historic GIS maps. These maps are often available on the Lewis and Clark County Recorder of Deeds website.

Lewis and Clark County Recorder of Deeds Helena MT 316 North Park Avenue 59601 406-447-8337