The capital of Oklahoma is Oklahoma City.
The Postal Code for Oklahoma: OK
Typical abbreviations for Oklahoma: Okla., Ok.
Time Zone:
The state of Oklahoma is in the Central Time (CST/CDT) zone and observes daylight saving time.
| Note: |
Starting in 2007, Daylight Savings Time will be begin 3 weeks earlier and end 1 week later.
Click here for details. |
When the people of Oklahoma refer to themselves: Oklahoman
Population: According to the 2006 Census estimates, Oklahoma has a population of 3,579,212 people.
This represents 1.20% of the national total, making it the 28th most populous state.
The following are population changes since the last Census. The population counts after year 2000 are estimates.
| Year | Population | Change |
| 2006 | 3,579,212 | +1.01% since 2005 |
| 2005 | 3,543,442 | +0.59% since 2004 |
| 2004 | 3,522,827 | +0.53% since 2003 |
| 2003 | 3,504,347 | +0.46% since 2002 |
| 2002 | 3,488,447 | +0.63% since 2001 |
| 2001 | 3,466,687 | +0.46% since 2000 |
| 2000 | 3,450,654 | Last Census Count |
Area:
The area of Oklahoma is 69,898 square miles (181,034.99 km²).
This represents 1.84% of the national total.
Oklahoma ranks as the 20th largest state.
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Density:
The population density of Oklahoma is 52.12 people per square mile (20.13 people/km²).
Oklahoma ranks 36th in population density.
Nickname for Oklahoma: "The Sooner State"
State Motto: "Labor Omnia Vincit" (Labor conquers all things)
State Bird: Scissor-Tailed Flycatcher (tyrannus forficatus)
State Tree: Eastern Redbud (cercis canadensis)
State Flower: Mistletoe (phoradendron serotinum)
State Song: "Oklahoma"
Statehood:
Oklahoma became the 46th state on Nov 16, 1907.
Useful State Links
The state website for Oklahoma can be found at:
The portal for Oklahoma tourism:
Communities Ranked by Population (Top-15)
 
| Rank | City | 2005
Population | National
Rank |
| 1 | Oklahoma City | 531,324 | 28 |
| 2 | Tulsa | 382,457 | 43 |
| 3 | Norman | 101,719 | |
| 4 | Lawton | 90,234 | |
| 5 | Broken Arrow | 86,228 | |
| 6 | Edmond | 74,881 | |
| 7 | Midwest City | 54,890 | |
| 8 | Enid | 46,416 | |
| 9 | Moore | 47,697 | |
| 10 | Muskogee | 39,766 | |
| 11 | Stillwater | 40,906 | |
| 12 | Bartlesville | 34,734 | |
| 13 | Shawnee | 29,824 | |
| 14 | Ponca City | 25,070 | |
| 15 | Ardmore | 24,280 | |
Miscellaneous Information
| Census Region: 3 (South) |
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| Census Division: 7 (West South-Central) |
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| State FIPS-55 Code: 40 |
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| Office of Management and Budget (OMB): Region VI / Region 6 |
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| ISO-3166-2 Code: US-OK |
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