Complete List of Municipalities in the Hartford Metro Area
The Hartford Metro Area encompasses a defined cluster of cities, towns, and boroughs in north-central Connecticut, anchored by the state capital of Hartford. Understanding which municipalities fall within the metro boundary matters for residents, planners, employers, and policymakers because designation affects federal funding eligibility, regional planning authority, and demographic reporting. This page details the official geographic scope of the Hartford metro, lists its constituent municipalities, and explains how boundary definitions shift depending on the governing framework applied.
Definition and scope
The Hartford Metro Area is formally defined by the U.S. Office of Management and Budget (OMB) as a Metropolitan Statistical Area (MSA). Under the OMB's delineation standards, the Hartford-East Hartford-Middletown, CT Metropolitan Statistical Area (OMB Bulletin No. 23-01) comprises Hartford County and Tolland County in their entirety, along with selected towns from Middlesex County. The MSA boundary was most recently revised in 2023 and contains a total population exceeding 1.2 million residents according to the U.S. Census Bureau.
The Hartford Metro Area Overview provides additional context on the region's physical geography and economic role within Connecticut. For a statistical and technical treatment of how the MSA designation is constructed, see the Hartford Metro Statistical Area Definition.
The formal MSA definition differs from the boundaries used by the Capitol Region Council of Governments (CRCOG), which covers 38 member municipalities primarily within Hartford County. Both definitions appear in regional planning and policy documents, and the distinction matters when interpreting federal grant data, transit planning documents, or labor market statistics.
How it works
Municipal membership in the Hartford Metro Area is not based on a single application or vote. Instead, the OMB applies a standardized methodology that links counties to core urban areas using commuting-flow data from the American Community Survey and decennial census. A county qualifies for inclusion when a defined percentage of its workforce commutes to or from the principal city — Hartford — meeting the OMB's 25 percent commuting threshold.
The municipalities that constitute the Hartford MSA fall across three Connecticut counties:
Hartford County (29 towns and cities):
1. Hartford (county seat and principal city)
2. East Hartford
3. West Hartford
4. Manchester
5. New Britain
6. Bristol
7. Enfield
8. Bloomfield
9. Windsor
10. Windsor Locks
11. South Windsor
12. Glastonbury
13. Wethersfield
14. Rocky Hill
15. Newington
16. Berlin
17. Southington
18. Plainville
19. Farmington
20. Avon
21. Simsbury
22. Granby
23. Canton
24. Burlington
25. Tolland (partial county overlap applies here administratively)
26. East Granby
27. Suffield
28. East Windsor
29. Marlborough
Tolland County (8 towns):
1. Tolland
2. Vernon
3. Ellington
4. Somers
5. Stafford
6. Union
7. Coventry
8. Willington
Middlesex County (selected towns included under the 2023 delineation):
1. Middletown
2. Cromwell
3. Portland
4. East Hampton
5. Middlefield
The complete and authoritative municipal roster is published by the U.S. Census Bureau's Geographic Products Branch and is updated following each OMB delineation revision. Readers should consult the Census Bureau's Metropolitan and Micropolitan Statistical Areas page for the definitive boundary file.
Common scenarios
Three practical situations arise frequently when the question of which municipalities belong to the Hartford Metro Area becomes operationally significant:
Federal funding allocations. When the U.S. Department of Housing and Urban Development (HUD) calculates Area Median Income (AMI) figures for affordable housing programs, it uses the MSA boundary. A municipality inside the MSA boundary receives a different AMI baseline than one outside it, directly affecting income qualification thresholds for housing assistance. The Hartford Metro Housing Market page examines these AMI implications in detail.
Regional transit planning. CTtransit and the Connecticut Department of Transportation (CTDOT) use Hartford County boundaries as an operational organizing layer, which does not align precisely with the MSA. Towns like Middletown and Cromwell, included in the MSA, fall under different CTDOT service district planning from Hartford County municipalities. The Hartford Metro Public Transit System page addresses service coverage across county lines.
Employer labor market reporting. The Bureau of Labor Statistics (BLS) publishes unemployment rates, wage data, and employment counts at the MSA level. An employer located in Vernon (Tolland County) reports into the same Hartford MSA labor market statistics as one located in Hartford itself, even though Vernon is governed by a separate county administration.
Decision boundaries
The central distinction to apply when working with Hartford Metro municipal data is MSA boundary vs. CRCOG boundary.
| Framework | Administering Body | Geographic Scope | Primary Use |
|---|---|---|---|
| Hartford MSA | U.S. OMB / Census Bureau | 3 counties, ~46 municipalities | Federal statistics, HUD, BLS |
| CRCOG Region | Capitol Region Council of Governments | 38 towns, primarily Hartford County | Regional planning, zoning, transit |
| Hartford County | Connecticut government | 29 municipalities | State administrative functions |
A municipality can fall within the MSA but outside CRCOG membership (e.g., Middletown), or within Hartford County but subject to separate planning subregions. When citing municipal-level data from the Hartford Metro Population and Demographics page, the applicable boundary definition should be stated explicitly to avoid misinterpretation.
The Hartford Metro Governance Structure and Hartford Metro vs. Greater Hartford Region pages provide additional comparative detail on how these overlapping jurisdictions interact in practice. For regional planning agency responsibilities specifically, the Hartford Metro Regional Planning Agencies page maps each agency's mandate to its geographic footprint.
The site index provides a full directory of reference pages covering the Hartford Metro Area across economic, infrastructure, demographic, and governance topics.
References
- U.S. Office of Management and Budget – OMB Bulletin No. 23-01 (2023 MSA Delineations)
- U.S. Census Bureau – Metropolitan and Micropolitan Statistical Areas
- Capitol Region Council of Governments (CRCOG)
- U.S. Bureau of Labor Statistics – Metropolitan Area Employment and Unemployment
- U.S. Department of Housing and Urban Development – FMR and Income Limit Data
- Connecticut Department of Transportation (CTDOT)