This 1856 map of Clinton County, NY, is the earliest known map of the full county. A preserved cloth copy hangs in the Historian's Office, but, thankfully, the Library of Congress has digitized the map for easier viewing.  

Clinton County - Founded in 1788

Altona - Settled in 1800, town officially created in 1857

AuSable - Settled in 1787, town officially created in 1839

Beekmantown - Settled in 1783, town officially created in 1820

Black Brook - Settled around 1825, town officially created in1839

Champlain

• Town - Settled in 1788, town officially created in 1788
• Village

Chazy - Settled in 1790, town officially created in1804

Clinton - Settled around1817, town officially created in 1845

Dannemora

• Town - Settled in 1836, town officially created in 1854
• Village

Ellenburg - Settled in 1803, town officially created in 1830

Mooers - Settled in 1796, town officially created in 1804

Peru - Settled around 1792, town officially created in 1792

Plattsburgh

• City - Settled in 1785, village officially created in 1815 and became a city in 1902
• Town - Settled in 1785, town officially created in 1785

Rouses Point (village) - Settled in 1783

Saranac - Settled in 1802, town officially created in 1824

Schuyler Falls - Settled in 1794, town officially created in 1848