Morris County, New Jersey

Morris County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF MORRIS GUS Population: 523,053 (2024) ID: 109043	County	Official County Government	Contact: CLERK OF THE FREEHOLDER BOARD PO BOX 900, MORRISTOWN NJ 07963-0900
TOWNSHIP OF PARSIPPANY-TROY HILLS GUS Population: 56,729 (2024) ID: 193751	Township	Municipal Government Within County	Contact: MAYOR 1001 PARSIPPANY BLVD, PARSIPPANY NJ 07054-1277
TOWNSHIP OF MOUNT OLIVE GUS Population: 29,499 (2024) ID: 184045	Township	Municipal Government Within County	Contact: ADMINISTRATOR PO BOX 450, BUDD LAKE NJ 07828-0450
TOWNSHIP OF ROCKAWAY GUS Population: 26,893 (2024) ID: 109160	Township	Municipal Government Within County	Contact: BUSINESS ADMINISTRATOR 65 MOUNT HOPE RD, ROCKAWAY NJ 07866-1699
TOWNSHIP OF RANDOLPH GUS Population: 26,780 (2024) ID: 170328	Township	Municipal Government Within County	Contact: TOWNSHIP CLERK 502 MILLBROOK AVE, RANDOLPH NJ 07869-3713
TOWNSHIP OF MONTVILLE GUS Population: 24,456 (2024) ID: 109159	Township	Municipal Government Within County	Contact: TWP CLERK 195 CHANGEBRIDGE RD, MONTVILLE NJ 07045-9498
TOWNSHIP OF MORRIS GUS Population: 23,727 (2024) ID: 204935	Township	Municipal Government Within County	Contact: ADMINISTRATOR 50 WOODLAND AVE, MORRISTOWN NJ 07960-6564
TOWNSHIP OF ROXBURY GUS Population: 23,397 (2024) ID: 130902	Township	Municipal Government Within County	Contact: TOWNSHIP MANAGER 1715 US HIGHWAY 46, LEDGEWOOD NJ 07852-9726
TOWN OF MORRISTOWN GUS Population: 20,732 (2024) ID: 170213	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 914, MORRISTOWN NJ 07963-0914
TOWNSHIP OF JEFFERSON GUS Population: 20,705 (2024) ID: 170324	Township	Municipal Government Within County	Contact: MAYOR 1033 WELDON RD, LAKE HOPATCONG NJ 07849-2332
TOWN OF DOVER GUS Population: 18,909 (2024) ID: 109109	Municipal	Municipal Government Within County	Contact: MAYOR 37 N SUSSEX ST, 1, DOVER NJ 07801-3906
TOWNSHIP OF WASHINGTON GUS Population: 18,364 (2024) ID: 208782	Township	Municipal Government Within County	Contact: OFFICE MANAGER 43 SCHOOLEYS MOUNTAIN RD, LONG VALLEY NJ 07853-3199
TOWNSHIP OF DENVILLE GUS Population: 17,376 (2024) ID: 170322	Township	Municipal Government Within County	Contact: MAYOR 1 SAINT MARYS PL, DENVILLE NJ 07834-2122
BOROUGH OF MADISON GUS Population: 16,555 (2024) ID: 170212	Municipal	Municipal Government Within County	Contact: MAYOR 50 KINGS RD, MADISON NJ 07940-2575
TOWNSHIP OF PEQUANNOCK GUS Population: 15,741 (2024) ID: 190905	Township	Municipal Government Within County	Contact: TOWNSHIP CLERK 530 NEWARK POMPTON TPKE, POMPTON PLAINS NJ 07444-1799
TOWNSHIP OF HANOVER GUS Population: 15,093 (2024) ID: 186567	Township	Municipal Government Within County	Contact: EXECUTIVE ASSISTANT PO BOX 250, WHIPPANY NJ 07981-0250
BOROUGH OF FLORHAM PARK GUS Population: 14,533 (2024) ID: 170210	Municipal	Municipal Government Within County	Contact: MAYOR 111 RIDGEDALE AVE, STE 2, FLORHAM PARK NJ 07932-1766
TOWNSHIP OF CHATHAM GUS Population: 11,284 (2024) ID: 170321	Township	Municipal Government Within County	Contact: MAYOR 58 MEYERSVILLE RD, CHATHAM NJ 07928-1199
TOWNSHIP OF EAST HANOVER GUS Population: 11,232 (2024) ID: 170323	Township	Municipal Government Within County	Contact: ADMINISTRATOR 411 RIDGEDALE AVE, EAST HANOVER NJ 07936-1440
BOROUGH OF LINCOLN PARK GUS Population: 11,030 (2024) ID: 130860	Municipal	Municipal Government Within County	Contact: MAYOR 34 CHAPEL HILL RD, LINCOLN PARK NJ 07035-1998
BOROUGH OF KINNELON GUS Population: 10,108 (2024) ID: 170211	Municipal	Municipal Government Within County	Contact: MAYOR 130 KINNELON RD, KINNELON NJ 07405-2336
BOROUGH OF CHATHAM GUS Population: 10,062 (2024) ID: 170209	Municipal	Municipal Government Within County	Contact: MUNICIPAL CLERK 54 FAIRMOUNT AVE, CHATHAM NJ 07928-2375
TOWN OF BOONTON GUS Population: 8,894 (2024) ID: 109108	Municipal	Municipal Government Within County	Contact: MAYOR 100 WASHINGTON ST, BOONTON NJ 07005-2197
TOWNSHIP OF LONG HILL GUS Population: 8,692 (2024) ID: 170327	Township	Municipal Government Within County	Contact: MAYOR 915 VALLEY RD, GILLETTE NJ 07933-1808
BOROUGH OF BUTLER GUS Population: 8,196 (2024) ID: 130859	Municipal	Municipal Government Within County	Contact: BOROUGH CLERK 1 ACE RD, STE 2, BUTLER NJ 07405-1348
TOWNSHIP OF CHESTER GUS Population: 7,776 (2024) ID: 204934	Township	Municipal Government Within County	Contact: MAYOR 1 PARKER RD, CHESTER NJ 07930-3223
BOROUGH OF WHARTON GUS Population: 7,444 (2024) ID: 170218	Municipal	Municipal Government Within County	Contact: MUNICIPAL CLERK 10 ROBERT ST, STE 2, WHARTON NJ 07885-1949
BOROUGH OF ROCKAWAY GUS Population: 6,651 (2024) ID: 170216	Municipal	Municipal Government Within County	Contact: BOROUGH CLERK 1 E MAIN ST, ROCKAWAY NJ 07866-3498
BOROUGH OF MORRIS PLAINS GUS Population: 6,590 (2024) ID: 130861	Municipal	Municipal Government Within County	Contact: MAYOR 531 SPEEDWELL AVE, MORRIS PLAINS NJ 07950-2122
TOWNSHIP OF MENDHAM GUS Population: 6,057 (2024) ID: 170325	Township	Municipal Government Within County	Contact: ADMINISTRATOR 2 W MAIN ST, BROOKSIDE NJ 07926
BOROUGH OF MOUNT ARLINGTON GUS Population: 5,979 (2024) ID: 170215	Municipal	Municipal Government Within County	Contact: MAYOR 419 HOWARD BLVD, MOUNT ARLINGTON NJ 07856-1129
BOROUGH OF MENDHAM GUS Population: 5,000 (2024) ID: 109110	Municipal	Municipal Government Within County	Contact: MAYOR 2 W MAIN ST, MENDHAM NJ 07945-1213
BOROUGH OF MOUNTAIN LAKES GUS Population: 4,644 (2024) ID: 170214	Municipal	Municipal Government Within County	Contact: BOROUGH MANAGER 400 BOULEVARD, STE 2, MOUNTAIN LAKES NJ 07046-1520
TOWNSHIP OF BOONTON GUS Population: 4,460 (2024) ID: 170320	Township	Municipal Government Within County	Contact: ADMINISTRATOR 155 POWERVILLE RD, BOONTON NJ 07005-8729
TOWNSHIP OF MINE HILL GUS Population: 4,171 (2024) ID: 170326	Township	Municipal Government Within County	Contact: FINANCE OFFICE 10 BAKER STREET, MINE HILL NJ 07803-3006
BOROUGH OF RIVERDALE GUS Population: 4,142 (2024) ID: 109112	Municipal	Municipal Government Within County	Contact: MAYOR 91 NEWARK POMPTON TPKE, RIVERDALE NJ 07457-1404
TOWNSHIP OF HARDING GUS Population: 3,936 (2024) ID: 130901	Township	Municipal Government Within County	Contact: HUMAN RESOURCES ADMINISTRATOR PO BOX 666, NEW VERNON NJ 07976-0666
BOROUGH OF NETCONG GUS Population: 3,925 (2024) ID: 130862	Municipal	Municipal Government Within County	Contact: ADMINISTRATOR 23 MAPLE AVE, NETCONG NJ 07857-1121
BOROUGH OF CHESTER GUS Population: 1,695 (2024) ID: 212065	Municipal	Municipal Government Within County	Contact: MAYOR 50 N RD, CHESTER NJ 07930-2568
BOROUGH OF VICTORY GARDENS GUS Population: 1,596 (2024) ID: 170217	Municipal	Municipal Government Within County	Contact: ADMINISTRATION CLERK 337 S SALEM ST, DOVER NJ 07801-5627