Summary for Columbia
About Columbia (Click for our profile page)
Located in: Delaware County (see below)
Pronunciation: koh-LUM-bee-uh <1>
Time Zone: Columbia lies in the Eastern Time Zone (EST/EDT)
Telephone Area Codes: 740 & 220<2>
Federal GNIS/FIPS Codes for Columbia
GNIS ID: 1068377
FIPS State / Place Code: None
(For more about Federal Codes, see our Misc Page for Columbia)
About Delaware County
The community of Delaware is the County Seat for Delaware County.
From the 2010 US Census (For more detail, see our )
Population
| Year | Population |
| 2019 Est:<3> | 209,177 (19.46% increase since 2010) |
| 2010 | 175,099 (59.2% increase since 2000) |
| 2000: | 109,989 |
Total Area:<4> 457.3 sq. miles [1,184.5 km²] - of which 3.11% is water (14.23 sq. miles [36.9 km²])
Housing Units: <5> 66,378
Official Website: www.co.delaware.oh.us/
Federal GNIS/FIPS Codes for Delaware
GNIS ID: 1074033
FIPS State / County Code: 39 / 041
(For more about Federal Codes, see our Misc Page for Columbia)
About Ohio
From the US Census
Population
| Year | Population |
| 2019 Est: | 11,696,507 (1.39% increase since 2010) |
| 2010: | 11,536,504 (1.62% increase since 2000) |
| 2000: | 11,353,140 |
Websites for State of Ohio
Official Website: https://ohio.gov/
Tourism: https://ohio.gov/tourism/
Parks: parks.ohiodnr.gov/
Fishing: https://ohiodnr.gov/go-and-do/outdoor/fishing
Hunting: https://ohiodnr.gov/go-and-do/outdoor/hunting
Federal GNIS/FIPS Codes for State of Ohio
GNIS ID: 1085497
FIPS State: 39
(For more about Federal Codes, see our Misc Page for Columbia)
Off-the-Road Links ...
Unfortunately, we don't know of a website for Columbia. If you can help, please contact us through our Feedback Page.
The official website for Delaware County: www.co.delaware.oh.us/
The official website for State of Ohio: https://ohio.gov/
Footnotes ...
| <1> | The pronunciation we've provided is our attempt to give a phonetic pronunciation for Columbia. 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 740 code has been Overlayed with the 220 area code. New phone numbers in the Columbia area will be assigned with one of these codes: 740 or 220. As a result, placing a call in the Columbia area will require 10-digit dialing (where you enter both the area code and then the phone number). |
| <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 Columbia. 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). |