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Summary for Potosi

About Potosi (Click for our profile page)

Located in: Washington County (see below)

Time Zone: Potosi lies in the Central Time Zone (CST/CDT)

Telephone Area Codes: 573 & 235<1>

ZIP Code: 63664<2>

Elevation: 1,010 feet [307.85 m] above sea level<3>

From the 2010 US Census (For more detail, see our Census Page for Potosi)

Population

Year	Population
2019 Est:<4>	2,562 (3.68% decrease since 2010)
2010:	2,660
2000:	2,662

Total Area:<5> 2.33 sq. miles [6 km²]

Housing Units:<6> 1,230

GPS Coordinates (Latitude/Longitude)<7>

For the purpose of mapping and calculating distances, we have chosen the following reference point for Potosi:

Lat: 37.936800° (or 37°56'12" N)

Lon: -90.788700° (or -90°47'19" W)

USGS Topo Map: Potosi<8>

Federal GNIS/FIPS Codes for Potosi

GNIS ID: 2396262

FIPS State / Place Code: 29 / 59330

(For more about Federal Codes, see our Misc Page for Potosi)

About Washington County

The city of Potosi is the County Seat for Washington County.

From the 2010 US Census (For more detail, see our Census Page for Washington)

Population

Year	Population
2019 Est:	24,730 (1.87% decrease since 2010)
2010	25,201 (7.95% increase since 2000)
2000:	23,344

Total Area: 762 sq. miles [1,974.8 km²]

Housing Units: 11,017

Federal GNIS/FIPS Codes for Washington

GNIS ID: 758563

FIPS State / County Code: 29 / 221

(For more about Federal Codes, see our Misc Page for Potosi)

About Missouri

From the US Census

Population

Year	Population
2019 Est:	6,140,475 (2.53% increase since 2010)
2010:	5,988,927 (7.04% increase since 2000)
2000:	5,595,211

Websites for State of Missouri

Official Website: https://www.mo.gov/

Tourism: https://www.visitmo.com/

Parks: https://mostateparks.com/

Fishing: https://mdc.mo.gov/fishing

Hunting: https://mdc.mo.gov/hunting-trapping

Federal GNIS/FIPS Codes for State of Missouri

GNIS ID: 1779791

FIPS State: 29

(For more about Federal Codes, see our Misc Page for Potosi)

Footnotes ...

<1>	When there's a risk of an area code running out of phone numbers, an 'Overlay Area Code' is created that has the same geographic boundaries as the existing area code. In this case, the 573 code has been Overlayed with the 235 area code. New phone numbers in the Potosi area will be assigned with one of these codes: 573 or 235. As a result, placing a call in the Potosi area will require 10-digit dialing (where you enter both the area code and then the phone number).
<2>	ZIP Codes have been created by the United States Postal Service (USPS) as a way of grouping addresses to make delivery more efficient. The boundaries of the ZIP Code can be changed, re-assigned, eliminated or overlapped with other ZIP Codes. So keep in mind that any given ZIP Code is only 'loosely' associated with a city (such as Potosi). When looking for a ZIP Code, whether Potosi or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<3>	The elevation is an estimate for the area around Potosi - it will be higher in some places and lower in others.
<4>	Every year, the US Census Bureau creates a population estimate for the preceeding year. Keep in mind that this value is an estimate and not an actual count. The most recent Census estimate is for the year 2019.
<5>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Potosi. The value given by the Census Bureau reflects their statistical (or sampling) requirements. For example, if there is a cluster of people living just outside of the community's official boundary, the Census-defined area might be expanded to include that group.
<6>	A Housing Unit is a broad term for those places where people live (whether occupied or temporarily vacant), such as a house, an apartment, a mobile home, or an area that is considered as a separate living quarter. Separate living quarters (consisting of one or more rooms) are considered to be those places where people live, sleep and eat separately from others and that have access to the outside (either directly or by a shared hallway).
<7>	Longitude & latitude values may not be the geographic center of Potosi, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<8>	Name of the USGS 7.5 Minute topographic map which includes Potosi.