state boundaries
Lines between states
State boundaries are the official borders that separate one state from another within a country, particularly the United States.
These lines determine which state's laws apply, which taxes you pay, and which government services you receive.
State boundaries follow rivers, mountain ridges, surveyed lines, or historical agreements: We crossed the state boundary into Nevada.
Unlike national borders, state boundaries rarely involve checkpoints—you simply drive past a welcome sign.
- annexationsClaiming territory as one's own
- colonial bordersBoundaries imposed by occupiers
- bordersLines separating regions
- partitionsBarriers dividing a space
- countiesAdministrative territorial divisions
sovereignty · Mason-Dixon · treaties · compacts · territorial disputes · disputed territory · no man's land · Four Corners · international law · rivers · jurisdictions · cities · cartography · mountains · demarcation lines · checkpoints · toll plazas · welcome signs
- US geographystates, capitals, regions, landmarks, rivers
- election mapselectoral college, electoral votes, red states, blue states, swing states
- state historystatehood, founding documents, pioneers, early settlers, colonial era
- Western mapsColorado, Wyoming, regional maps, Grand Canyon, Yosemite
- Northwest MapsPacific Northwest, road atlases, highway maps, county maps, Columbia River
- Australian Geographystates, territories, New South Wales, Victoria, Queensland
state boundariesnational borders
Boundaries between sovereign states
international borders · county lines · city limits · district lines · district boundaries
state boundariesgeographic boundaries
Divisions between territories
mountain ranges · coastlines · watersheds · natural barriers