How long does mail take from Oklahoma to each state?
The map shades each state by the number of days USPS most often gives a First Class letter from Oklahoma, and the table under it gives the usual range for every state, so you can read off a trip like Oklahoma to California at a glance.
| Trip | Usually | Most often | Within 3 days |
|---|---|---|---|
| Within Oklahoma | 2 to 3 days | 2 days | 100 percent |
| Oklahoma to Alabama | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Alaska | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Arizona | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Arkansas | 2 to 4 days | 3 days | 57 percent |
| Oklahoma to California | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Colorado | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Connecticut | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Delaware | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Washington, DC | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Florida | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Georgia | 3 to 4 days | 4 days | 32 percent |
| Oklahoma to Hawaii | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Idaho | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Illinois | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Indiana | 3 to 4 days | 4 days | 34 percent |
| Oklahoma to Iowa | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Kansas | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Kentucky | 3 to 4 days | 4 days | 35 percent |
| Oklahoma to Louisiana | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Maine | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Maryland | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Massachusetts | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Michigan | 3 to 4 days | 4 days | 36 percent |
| Oklahoma to Minnesota | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Mississippi | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Missouri | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Montana | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Nebraska | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Nevada | 3 to 5 days | 4 days | 28 percent |
| Oklahoma to New Hampshire | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to New Jersey | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to New Mexico | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to New York | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to North Carolina | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to North Dakota | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Ohio | 3 to 5 days | 4 days | 20 percent |
| Oklahoma to Oregon | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Pennsylvania | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Rhode Island | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to South Carolina | 4 to 5 days | 5 days | 2 percent |
| Oklahoma to South Dakota | 3 to 5 days | 4 days | 26 percent |
| Oklahoma to Tennessee | 3 to 4 days | 4 days | 35 percent |
| Oklahoma to Texas | 2 to 4 days | 3 days | 59 percent |
| Oklahoma to Utah | 4 to 5 days | 5 days | 3 percent |
| Oklahoma to Vermont | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Virginia | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Washington | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to West Virginia | 4 to 5 days | 5 days | 0 percent |
| Oklahoma to Wisconsin | 3 to 4 days | 4 days | 38 percent |
| Oklahoma to Wyoming | 3 to 5 days | 4 days | 31 percent |
How long does a letter take within Oklahoma?
USPS's directory gives 2 days to 50 percent of the letters that start and end in Oklahoma and 3 days to 49 percent. About 37 percent of the people in Oklahoma live in ZIP codes whose letters get a day more than the rest of their 3 digit ZIP area, which is the 2025 rule for post offices more than 50 miles' drive from the plant that sorts their mail. If you mail from one of those towns, expect the slower end of each range on this page.
Which states get mail from Oklahoma fastest?
USPS most often gives 3 days or fewer to letters from Oklahoma bound for 2 other states, which are Texas and Arkansas. To Texas, 59 percent of letters have a standard of 3 days or less.
Which states take the longest from Oklahoma?
USPS gives 5 days to most letters from Oklahoma going to 25 states, including California and Florida. A letter on one of these trips that goes out with Monday's pickup is due on Saturday, or a day later when a holiday falls in the week.
How much of the country is within 3 days of Oklahoma?
If you sent one letter from Oklahoma to every person in the country, Oklahoma included, USPS would give 20 percent of them a standard of 3 days or less. That ranks Oklahoma 28th of the 50 states and DC, and the state in the middle of that list is at 22 percent.
How do I find the exact days for one letter?
Each range on this page covers many ZIP codes, and one letter has a single number. For example, USPS gives a letter from ZIP 73099 in Oklahoma to ZIP 92336 in California 4 days. Our delivery time tool shows that number for any two ZIP codes and counts it out on the calendar, skipping Sundays and holidays.
How were these days worked out?
The days come from USPS's own service standard directory for First Class Mail, effective October 1, 2026, which we download from USPS's Service Standards Files API. It gives the days from every 3 digit ZIP area to every other, plus the 5 digit ZIP codes whose letters get a different number. For Oklahoma we took each of its 660 populated ZIP codes as a starting point and each 3 digit ZIP area of the destination state as an end point, and weighted every pair by the people who live at both ends, using the Census Bureau's 2023 population counts. "Usually" is the range that covers the middle 8 of every 10 letters, and "most often" is the single most common number.
A service standard is USPS's target for a stamped letter mailed before the day's last pickup, and First Class Mail has no delivery guarantee. Sundays and the 11 federal holidays USPS observes don't count as delivery days.
Sources
- USPS, Service Standards Files API, "3D Base Service Standard Directory" and "Supplemental Service Standard Directory FCM", effective October 1, 2026, downloaded October 21, 2026: developers.usps.com
- Code of Federal Regulations, 39 CFR 121.1, First Class Mail service standards: ecfr.gov
- U.S. Census Bureau, American Community Survey 2023 5 year estimates, table B01003, population by ZIP Code Tabulation Area: data.census.gov
- U.S. Census Bureau, 2020 ZIP Code Tabulation Area to county relationship file: census.gov
- USPS Service Standards API, spot checks on October 21, 2026 that matched the directory: ZIP 77494 to 34787, 3 days; ZIP 92336 to 11368, 5 days; ZIP 11368 to 92336, 5 days; ZIP 60629 to 60629, 2 days; ZIP 59001 to 59901, 4 days; ZIP 590 to 59901, 3 days