Washington County, Oklahoma's smallest county by area at just 415 square miles, packs a powerful economic punch as the historic home of Phillips Petroleum and the vibrant Bartlesville metro area with over 54,000 residents. From the iconic Frank Lloyd Wright Price Tower to the world-class Woolaroc Museum, this northeastern Oklahoma county blends oil heritage with cultural treasures on the edge of the Osage Hills. For reliable process serving throughout Washington County, call (539) 367-6832 or visit /contact.
Judicial District 11, Washington County
Washington County Courthouse
400 S Johnstone Ave, Bartlesville, OK 74003
🕐 Mon-Fri 8:00 AM - 4:30 PM
Serves: Bartlesville, Dewey, Copan, Ochelata
Serving businesses and employees in Washington County
| Employer | Address | Industry | Service Notes |
|---|---|---|---|
| Phillips 66 | Bartlesville, OK 74004 | Energy | Major corporate presence; HR M–F |
| ConocoPhillips | Bartlesville, OK 74004 | Energy | Corporate offices |
| Bartlesville Public Schools | 1700 Hillcrest Dr, Bartlesville, OK 74003 | Education | 1,100+ employees |
| City of Bartlesville | 401 S Johnstone Ave, Bartlesville, OK 74003 | Government | Municipal court |
| Washington County Government | 420 S Johnstone Ave, Bartlesville, OK 74003 | Government | Courthouse complex |
| Jane Phillips Memorial Medical Center | 3500 E Frank Phillips Blvd, Bartlesville, OK 74006 | Healthcare | 800+ employees |
| Walmart Supercenter | 4000 SE Green Country Rd, Bartlesville, OK 74006 | Retail | 200+ employees |
Transparent tiered pricing for Washington County, full rates on our pricing page
Standard Service
2–3 business days
3 attempts · GPS affidavit · Photo docs
Rush Service
Next business day
Priority scheduling · All features
Same-Day Service
Call before noon
Immediate deployment · Washington County coverage
Standard, rush, and same-day tiers available in Washington County. See current rates at /pricing.
Local process serving questions answered
The Washington County Courthouse is located at 420 S. Johnstone Avenue in Bartlesville, Oklahoma 74003. The court clerk's office is open Monday through Friday from 8:00 AM to 5:00 PM, though court-related filings may need to be completed by 4:30 PM.
Washington County falls within the Cherokee Nation reservation boundaries, which was reaffirmed under the McGirt v. Oklahoma Supreme Court decision. The Cherokee Nation exercises jurisdiction over a 14-county area in northeastern Oklahoma that includes Washington County.
As of 2024, Washington County has an estimated population of approximately 54,060 residents, making it the 14th most populous county in Oklahoma. The county covers 415 square miles of land area (424 square miles total), making it the smallest county in Oklahoma by total area. The county seat is Bartlesville, which is also the largest city with approximately 38,400 residents.
Washington County's economy is historically rooted in the oil and gas industry, with major employers including Phillips 66, ConocoPhillips, and Schlumberger. Other significant employers include Jane Phillips Medical Center (healthcare), Bartlesville Public Schools (education), Walmart (retail), and Chevron Phillips Chemical (petrochemicals). The healthcare and social assistance sector is the largest employment category in the county, followed by retail...
Washington County includes two cities and four incorporated towns. The cities are Bartlesville (the county seat) and Dewey. The towns are Copan, Ochelata, Ramona, and Vera.
Washington County is part of Oklahoma's 11th Judicial District. Court records can be searched through the Oklahoma State Courts Network (OSCN) using the database key 'Washington.' The county has one District Court located in Bartlesville, plus municipal courts in Bartlesville, Copan, Dewey, Ochelata, Ramona, and Vera. The court clerk's office can be reached at (918) 337-2870 for record requests.
Available 24/7 for urgent legal document service across Washington County
GPS-verified coverage throughout Washington County
Professional process serving throughout this area
GPS-tracked, notarized, and court-ready in Washington County.
Use these pages to compare service speed, methods, and filing support before scheduling service in your county.
(539) 367-6832 · From $60 · Same-Day Available
