# Washington County

> former county of the District of Columbia in the United States (1801–1871)

**Wikidata**: [Q7971751](https://www.wikidata.org/wiki/Q7971751)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Washington_County,_D.C.)  
**Source**: https://4ort.xyz/entity/washington-county-q7971751


## References

1. Geographic Names Information System
2. District of Columbia Organic Act of 1801
3. District of Columbia Organic Act of 1871
4. Virtual International Authority File
5. [Atlas of Historical County Boundaries](https://digital.newberry.org/ahcb/documents/DC_Individual_County_Chronologies.htm)
6. GeoNames
7. National Library of Israel Names and Subjects Authority File