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Summary for El Dorado

About El Dorado (Click for our profile page)

Located in: Union County (see below)

Pronunciation: el doe-RAY-doe <1>

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

Telephone Area Codes: 870 & 327<2>

ZIP Codes: 71730-71731<3>

Elevation: 220 feet [67.06 m] above sea level<4>

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

Population

Year	Population
2019 Est:<5>	17,645 (6.56% decrease since 2010)
2010:	18,884 (12.29% decrease since 2000)
2000:	21,530

Total Area:<6> 16.27 sq. miles [42.1 km²]

Housing Units:<7> 8,969

Websites for El Dorado

Official Website: www.eldoradoar.org/

Chamber of Commerce: www.boomtown.org/

GPS Coordinates (Latitude/Longitude)<8>

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

Lat: 33.211900° (or 33°12'42" N)

Lon: -92.663700° (or -92°39'49" W)

USGS Topo Map: El Dorado West<9>

Federal GNIS/FIPS Codes for El Dorado

GNIS ID: 2403547

FIPS State / Place Code: 05 / 21070

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

About Union County

The city of El Dorado is the County Seat for Union County.

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

Population

Year	Population
2019 Est:	38,682 (6.95% decrease since 2010)
2010	41,573 (8.89% decrease since 2000)
2000:	45,629

Total Area: 1,055 sq. miles [2,733 km²] - of which 1.51% is water (15.98 sq. miles [41.4 km²])

Housing Units: 19,653

Official Website: https://www.unioncountyar.com/

Federal GNIS/FIPS Codes for Union

GNIS ID: 69903

FIPS State / County Code: 05 / 139

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

About Arkansas

From the US Census

Population

Year	Population
2019 Est:	3,020,985 (3.6% increase since 2010)
2010:	2,915,918 (9.07% increase since 2000)
2000:	2,673,400

Websites for State of Arkansas

Official Website: https://portal.arkansas.gov/

Tourism: https://www.arkansas.com/

Parks: https://www.arkansasstateparks.com/

Fishing: https://www.agfc.com/fishing/

Hunting: https://www.agfc.com/hunting/

Federal GNIS/FIPS Codes for State of Arkansas

GNIS ID: 68085

FIPS State: 05

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

Footnotes ...

<1>	The pronunciation we've provided is our attempt to give a phonetic pronunciation for El Dorado. While it might not be exactly right, hopefully it will be close. If we have it wrong or there's a better way to pronounce the name, please contact us through our Feedback Page.
<2>	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 870 code has been Overlayed with the 327 area code. New phone numbers in the El Dorado area will be assigned with one of these codes: 870 or 327. As a result, placing a call in the El Dorado area will require 10-digit dialing (where you enter both the area code and then the phone number).
<3>	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 El Dorado). When looking for a ZIP Code, whether El Dorado or elsewhere, it's always best to check the website of the United States Postal Service (USPS). Our list of ZIP Codes for El Dorado includes: 71730 & 71731.
<4>	The elevation is an estimate for the area around El Dorado - it will be higher in some places and lower in others.
<5>	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.
<6>	The area value has been supplied by the US Census Bureau and it can be different than the geographic boundaries of El Dorado. 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.
<7>	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).
<8>	Longitude & latitude values may not be the geographic center of El Dorado, rather it may be a prominent intersection or the center of population, etc. It will vary depending on the source.
<9>	Name of the USGS 7.5 Minute topographic map which includes El Dorado.