The state of Connecticut is divided into 169 Cities and Towns. When assigning the "City" property to Road Segments please use this list.
- Andover (CRCOG GIS)
- Ansonia
- Ashford
- Avon (GIS, CRCOG GIS)
- Barkhamsted
- Beacon Falls (GIS, COGCNV GIS)
- Berlin (GIS)
- Bethany
- Bethel (GIS)
- Bethlehem (COGCNV GIS)
- Bloomfield (MDC GIS, CRCOG GIS)
- Bolton (CRCOG GIS)
- Bozrah (SCCOG GIS)
- Branford (GIS)
- Bridgeport
- Bridgewater
- Bristol
- Brookfield
- Brooklyn
- Burlington
- Canaan
- Canterbury
- Canton (GIS, CRCOG GIS)
- Chaplin
- Cheshire (GIS, COGCNV GIS)
- Chester
- Clinton
- Colchester (SCCOG GIS)
- Colebrook
- Columbia
- Cornwall
- Coventry
- Cromwell
- Danbury (GIS)
- Darien
- Deep River
- Derby
- Durham
- East Granby (CRCOG GIS)
- East Haddam
- East Hampton
- East Hartford (MDC GIS, CRCOG GIS)
- East Haven
- East Lyme (SCCOG GIS)
- East Windsor (CRCOG GIS)
- Eastford
- Easton
- Ellington (CRCOG GIS)
- Enfield (GIS, CRCOG GIS)
- Essex
- Fairfield
- Farmington (CRCOG GIS)
- Franklin (SCCOG GIS)
- Glastonbury (GIS, CRCOG GIS)
- Goshen
- Granby (CRCOG GIS)
- Greenwich
- Griswold (SCCOG GIS)
- Groton (SCCOG GIS)
- Guilford (GIS)
- Haddam (GIS)
- Hamden
- Hampton
- Hartford (GIS, MDC GIS, CRCOG GIS)
- Hartland
- Harwinton
- Hebron (CRCOG GIS)
- Kent
- Killingly (GIS)
- Killingworth
- Lebanon
- Ledyard (SCCOG GIS)
- Lisbon (SCCOG GIS)
- Litchfield
- Lyme
- Madison
- Manchester (GIS, CRCOG GIS)
- Mansfield (GIS)
- Storrs
- Marlborough (GIS, CRCOG GIS)
- Meriden (GIS)
- Middlebury (COGCNV GIS)
- Middlefield
- Middletown (GIS)
- Milford
- Monroe
- Montville (SCCOG GIS)
- Morris
- Naugatuck (COGCNV GIS)
- Newington (MDC GIS, CRCOG GIS)
- Newtown
- New Britain
- New Canaan
- New Fairfield
- New Hartford
- New Haven
- New London (SCCOG GIS)
- New Milford (GIS)
- Norfolk
- North Branford
- North Canaan
- North Haven
- North Stonington (SCCOG GIS)
- Norwalk
- Norwich (SCCOG GIS)
- Old Lyme (GIS)
- Old Saybrook
- Orange
- Oxford (COGCNV GIS)
- Plainfield
- Plainville
- Plymouth
- Pomfret
- Portland
- Preston (SCCOG GIS)
- Prospect (COGCNV GIS)
- Putnam
- Redding
- Ridgefield
- Rocky Hill (GIS, MDC GIS, CRCOG GIS)
- Roxbury
- Salem (SCCOG GIS)
- Salisbury
- Scotland
- Seymour
- Sharon
- Shelton
- Sherman
- Simsbury (CRCOG GIS)
- Somers (CRCOG GIS)
- South Windsor (GIS, CRCOG GIS)
- Southbury (GIS, COGCNV GIS)
- Southington (GIS)
- Sprague (SCCOG GIS)
- Stafford
- Stamford
- Sterling
- Stonington (GIS, SCCOG GIS)
- Stratford
- Suffield (CRCOG GIS)
- Thomaston (COGCNV GIS)
- Thompson
- Tolland (CRCOG GIS)
- Torrington
- Trumbull (GIS)
- Union
- Vernon (CRCOG GIS)
- Voluntown (SCCOG GIS)
- Wallingford
- Warren
- Washington
- Waterbury (GIS, COGCNV GIS)
- Waterford (SCCOG GIS)
- Watertown (COGCNV GIS)
- West Hartford (GIS, MDC GIS, CRCOG GIS)
- West Haven
- Westbrook
- Weston
- Westport
- Wethersfield (MDC GIS, CRCOG GIS)
- Willington (GIS)
- Wilton
- Winchester
- Winsted
- Windham
- Willimantic
- Windsor (MDC GIS, CRCOG GIS)
- Windsor Locks (CRCOG GIS)
- Wolcott (COGCNV GIS)
- Woodbridge
- Woodbury (GIS, COGCNV GIS)
- Woodstock
Regional GIS
- The MDC - Bloomfield, East Hartford, Hartford, Newington, Rocky Hill, West Hartford, Wethersfield, and Windsor
- Capitol Region Council of Governments - Andover, Avon, Bloomfield, Bolton, Canton, East Granby, East Hartford, East Winsor, Ellington, Enfield, Farmington, Glastonbury, Granby, Hartford, Hebron, Manchester, Marlborough, Newington, Rocky Hill, Simsbury, Somers, South Windsor, Suffield, Tolland, Vernon, West Hartford, Wethersfield, Windsor, Windsor Locks
- Southeastern Connecticut Council of Governments - Bozrah, Colchester, East Lyme, Franklin, Griswold, Groton, Ledyard, Lisbon, Montville, New London, North Stonington, Norwich, Preston, Salem, Sprague, Stonington, Voluntown, and Waterford
- Council of Governments, Central Naugatuck Valley - Beacon Falls, Bethlehem, Cheshire, Middlebury, Naugatuck, Oxford, Prospect, Southbury, Thomaston, Waterbury, Watertown, Wolcott, Woodbury