Inside the Oklahoma City 100-Mile Circle: 67.5% of Oklahoma, Including Oklahoma City

By SimpleMapLab·Published 13 May 2026·Rank #25 of 50 states·↑ All 50 states

67.5% of Oklahoma’s population — about 2.72 M of 4.03 M residents — lives within 100 miles of Oklahoma City. The other 32.5% — including Tulsa — sits beyond the circle.

A 100-mile geodesic radius around the Oklahoma City, OK state capitol overlaid on Oklahoma. 67.5% of Oklahoma's population lives inside the dashed ring.

67.5%

of Oklahoma’s population within 100 miles of Oklahoma City

2.72 M

residents inside the radius (of 4.03 M statewide)

39 mi

from Oklahoma City to Oklahoma’s population centroid

#25

of 50 states ranked by capital-to-population centrality

Open this radius in the map → /tools/map-radius-tool · Oklahoma City, OK · 100 mi
The link opens the SimpleMapLab Map Radius Tool with the 100-mile circle already drawn around the Oklahoma City capitol. Change the radius to 50, 250, or any value to compare different framings.

Why this happened

Oklahoma's capital is centrally located but not perfectly placed. Oklahoma City's 100-mile circle captures roughly two-thirds to four-fifths of the state's residents — including Oklahoma City (the largest city inside, ~697K). The notable exception: Tulsa, sitting 109 miles from the capital. The capital itself sits 39 miles from Oklahoma's population centroid — a moderate but not extreme offset.

The biggest cities inside the 100-mile radius

The top 5 most-populous places (by aggregated ZIP code population) sitting inside the 100-mile circle around Oklahoma City. Cities are listed by total population captured by ZIP centroids in the dataset.

#	City	Population in radius
1	Oklahoma City	697,372
2	Tulsa	272,214
3	Edmond	193,997
4	Norman	134,454
5	Yukon	91,014

The largest city outside the radius

Oklahoma’s most-populous city outside the 100-mile circle is Tulsa, sitting 109 miles from Oklahoma City. The aggregated population of Tulsa’s ZIP codes alone — 164,282 residents — illustrates the gap between Oklahoma’s political seat and its population centre.

How Oklahoma compares

The states ranked closest to Oklahoma on this metric. Click any to compare the radius breakdown directly.

#24 Wisconsin

Madison · 69.4% pop. captured

#26 Pennsylvania

Harrisburg · 66.4% pop. captured

#23 Kentucky

Frankfort · 70.1% pop. captured

#27 Indiana

Indianapolis · 62.4% pop. captured

#22 Louisiana

Baton Rouge · 73.2% pop. captured

Draw it yourself

Open the 100-mile circle around Oklahoma City →

The Map Radius Tool lets you change the radius (try 50 mi for an urban-suburban question or 250 mi for “a day’s drive”), drag the centre to compare Oklahoma City’s reach with that of Oklahoma City, or add a second circle for a side-by-side comparison.

Methodology (brief)

We took the lat/lng of the Oklahoma state capitol building (35.4676°, -97.5164°) and drew a 100-mile geodesic radius. For every ZIP code in Oklahoma, we tested whether the ZIP centroid falls inside; if so, its population counts. We then divide by Oklahoma’s total population to produce the percentage. The full methodology for all 50 states is on the hub page.

Suggested citation: SimpleMapLab (2026). 100 Miles Around Oklahoma City: How Much of Oklahoma Is Inside? Part of the State Capital Radius study. Retrieved from https://www.simplemaplab.com/studies/state-capital-radius/oklahoma. Licensed under CC-BY 4.0.