FIPS 6-4 County Lookup

County FIPS

County
Name

Class

001

Barnstable

003

Berkshire

005

Bristol

007

Dukes

009

Essex

011

Franklin

013

Hampden

015

Hampshire

017

Middlesex

019

Nantucket

021

Norfolk

023

Plymouth

025

Suffolk

027

Worcester

H1 identifies an active county or statistically equivalent entity that does not qualify under subclass C7* or H6.
H4 identifies a legally defined inactive or nonfunctioning county or statistically equivalent entity that does not qualify under subclass H6.
H5 identifies census areas in Alaska, a statistical county equivalent entity.
H6 identifies a county or statistically equivalent entity that is areally coextensive or governmentally consolidated with an incorporated place, part of an incorporated place, or a consolidated city.
C7 identifies an incorporated place that is an independent city; that is, it also serves as a county equivalent because it is not part of any county, and an MCD equivalent because it is not part of any MCD.