CChronica Maps

What Country Was San Mateo In?

San Mateo (California, United States of America) lies within 4 different states on Chronica Maps' 39 historical border maps. The longest stretch is under Anasazi, from AD 800 to AD 999. The earliest state recorded here is Anasazi (AD 800).

Who ruled San Mateo?

Period (by border map)Ruled by
500 BC – AD 799North American Pacific foraging, hunting and fishing peoples
AD 800 – AD 999Anasazi
1000 – 1491Unclaimed / no data
1492 – 1499Ohlone
1500 – 1599Pomo
1600 – 1649Costanoan
1650 – 1782Unclaimed / no data
1783 – 1879Viceroyalty of New Spain
1880 – 1913United States of America
1914 – todayUnited States
Map showing San Mateo in AD 900San Mateo
Border map for AD 900. See the world in AD 900.

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Historic cities nearby

Based on approximate historical borders; towns close to a frontier may be assigned to a neighbouring state.

Last updated 9 November 2026. Sources: border data from historical-basemaps, land and rivers from Natural Earth; texts written for Chronica Maps from standard reference works. How we make the maps.