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Summary for Mercer Island

About Mercer Island (Click for our profile page)

Located in: King County (see below)

Typical Abbreviation: Mercer Is.

Time Zone: Mercer Island lies in the Pacific Time Zone (PST/PDT)

Telephone Area Code: 206

ZIP Code: 98040<1>

Elevation: 70 feet [21.34 m] above sea level<2>

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

Population

Year	Population
2019 Est:<3>	25,877 (14% increase since 2010)
2010:	22,699 (3.01% increase since 2000)
2000:	22,036

Total Area:<4> 13.11 sq. miles [34 km²] - of which 51.8% is water (6.79 sq. miles [17.6 km²])

Housing Units:<5> 9,930

Official Website: www.ci.mercer-island.wa.us/

GPS Coordinates (Latitude/Longitude)<6>

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

Lat: 47.570900° (or 47°34'15" N)

Lon: -122.221500° (or -122°13'17" W)

USGS Topo Map: Mercer Island<7>

Federal GNIS/FIPS Codes for Mercer Island

GNIS ID: 2411082

FIPS State / Place Code: 53 / 45005

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

About King County

The city of Seattle is the County Seat for {King County}.

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

Population

Year	Population
2019 Est:	2,252,782 (16.22% increase since 2010)
2010	1,938,351 (11.59% increase since 2000)
2000:	1,737,034

Total Area: 2,306 sq. miles [5,974.8 km²] - of which 8.29% is water (191.3 sq. miles [495.5 km²])

Housing Units: 851,261

Official Website: https://kingcounty.gov/

Federal GNIS/FIPS Codes for King

GNIS ID: 1531933

FIPS State / County Code: 53 / 033

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

About Washington

From the US Census

Population

Year	Population
2019 Est:	7,614,024 (13.23% increase since 2010)
2010:	6,724,540 (14.09% increase since 2000)
2000:	5,894,121

Websites for State of Washington

Official Website: https://wa.gov/

Tourism: https://stateofwatourism.com/

Parks: https://parks.wa.gov/

Fishing: https://wdfw.wa.gov/fishing/

Hunting: https://wdfw.wa.gov/hunting/

Federal GNIS/FIPS Codes for State of Washington

GNIS ID: 1779804

FIPS State: 53

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

Footnotes ...

<1>	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 Mercer Island). When looking for a ZIP Code, whether Mercer Island or elsewhere, it's always best to check the website of the United States Postal Service (USPS).
<2>	The elevation is an estimate for the area around Mercer Island - it will be higher in some places and lower in others.
<3>	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.
<4>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of Mercer Island. 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.
<5>	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).
<6>	Longitude & latitude values may not be the geographic center of Mercer Island, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<7>	Name of the USGS 7.5 Minute topographic map which includes Mercer Island.