What Is OSU Extension?
Oklahoma State University Cooperative Extension, usually called OSU Extension, is the university's public education arm. OSU Extension has offices in each of Oklahoma's 77 counties. County office pages describe the office as providing research-based resources, many of them free, to help residents improve their homes, workplaces and communities. Its programs are meant to address problems county residents face, and the office is part of a nationwide network of university extension offices that offer public education and service (see, for example, the Ottawa County listing and the Grant County listing).
That makes your county office a good first call when you have a question about livestock, a garden, a youth project, food, family finances or a community problem, and are not sure who else to ask.
What Services Do County Offices List?
Every county office has its own page on the OSU Extension site, and the services differ from county to county. Three county pages show the range.
| County | Services listed on its page |
|---|---|
| Carter | Carter County 4-H, Agriculture, Families and Consumers |
| Oklahoma | Oklahoma County 4-H, Agriculture, Families and Consumers, Horticulture, Master Gardener, Oklahoma Home and Community Education, Eastside Fresh Market |
| Tulsa | Tulsa County 4-H, Agriculture, Families and Consumers, Community Nutrition Education Program, Horticulture, Master Gardener, Oklahoma Home and Community Education, Tulsa County Fair, TV Segments |
The pattern is clear. Agriculture, 4-H and families and consumers programs show up on every one of these pages, while horticulture, Master Gardener and nutrition education appear where the county has staff for them. Check your own county page rather than assuming.
Who Works in a County Office?
Staff titles on the county pages show how the work is divided.
- County Extension Director. Each of the Oklahoma County and Tulsa County pages lists a County Extension Director. Carter County lists an interim director who also serves as Family and Consumer Sciences and 4-H Educator.
- Agriculture educators. Carter County lists an Agriculture/4-H Educator, and Oklahoma County lists an Agriculture/4-H Educator as well. In many counties one person covers both areas.
- Family and Consumer Sciences educators. Oklahoma County and Tulsa County both list Family and Consumer Sciences educators.
- Horticulture educators. Oklahoma County lists a Horticulture/4-H Educator, and Tulsa County lists a Horticulture/4-H Educator and a Horticulture Program Assistant.
- 4-H educators. Each of these three counties lists staff with 4-H in their titles.
- Nutrition education assistants and program coordinators. Carter, Oklahoma and Tulsa counties list nutrition education assistants and field program coordinators.
- Administrative support. Each page lists extension administrative support staff, who are often the people who answer the phone.
Titles and names change, so use the county page for the current staff list.
Programs and Events
County pages also list workshops and trainings. The Carter County page, for example, listed a tree and shrub pruning workshop in Ardmore, a Carter County Cattlemen's Meeting in Ardmore, a pecan pest management workshop in Shawnee, a co-parenting class, and a free weekly Zoom series for beginning producers covering topics such as business planning, farm taxes, enterprise budgeting and grants. The Oklahoma County page listed events including container gardening, electric pressure cookers 101, a Beef Quality Assurance training in Cleveland County and a class for divorcing parents offered in Spanish.
Those were the events posted when the pages were checked. Dates and locations change quickly, so look at the live calendar before you plan a trip. Many county pages also offer newsletter sign-up, which is the easiest way to hear about the next workshop.
Some counties run programs that go beyond the usual list. Oklahoma County's page describes Eastside Fresh Market as a food access hub for Northeast Oklahoma City that also creates market opportunities for local farmers and food producers. Tulsa County's page lists the Tulsa County Fair among its services.
How OSU Extension Is Organized
The county directory page shows a regional layer above the county offices. The State Office handles central administration, and districts group the counties. The West District is based in Enid, with area specialists in Goodwell (Texas County), Altus (Jackson County), Enid (Garfield County) and Duncan (Stephens County). The Northeast District is based in Muskogee, and the Southeast District is based in Ada, with area specialists in Ada (Pontotoc County) and Durant (Bryan County).
An area specialist may cover several counties. If your county agent cannot answer a technical question, they can often point you to the specialist who can.
How to Get the Most From Your Office
- Find your county page first. Start from the OSU Extension county directory and open your county, or a neighboring county, to see what is offered.
- Match your question to a program area. Crops and livestock go to agriculture, yards and gardens to horticulture, food and family topics to Families and Consumers, and youth projects to 4-H.
- Sign up for the newsletter. Carter, Oklahoma and Tulsa county pages all list newsletter sign-up.
- Ask about cost. The offices describe their resources as many free, not all free, so ask before you register for a workshop.
- Try a neighboring county. The directory page itself suggests checking a neighboring county to see what OSU Extension has to offer.
Frequently Asked Questions
Is there an Extension office in every Oklahoma county?
Yes. OSU Extension has offices in each of Oklahoma's 77 counties.
Are the services free?
County offices describe their research-based resources as many of them free. Some programs and workshops may require registration or a fee, so check the event listing.
Is 4-H part of the Extension office?
County pages list 4-H as a service of the office, and 4-H educators appear on the county staff lists.
Where do I find a phone number?
On your county page. Not every page shows the same contact details, so use the page for your county rather than a number from another source.
Do offices only serve farmers?
No. County pages list family, consumer, nutrition and horticulture programs alongside agriculture, and the offices describe their purpose as helping residents improve their homes, workplaces and communities.
Official Resources
- OSU Extension - County Offices: directory of all 77 county offices and the district layout
- Carter County OSU Extension: example of a county page with staff and events
- Oklahoma County OSU Extension: example of a larger county with horticulture and Master Gardener
- Tulsa County OSU Extension: example of an urban county page
Oklahoma Listings Covered by This Guide
- Adair County OSU Extension Office
Located in the Adair County Courthouse basement in Stilwell, the OSU Extension office lists Leader Lessons for OHCE, 4-H newsletters and Co-Parenting for Resilience classes for Northeast District residents.
220 W Division St, Courthouse Basement, Stilwell, OK 74960 | 918-696-2253 Website - Alfalfa County OSU Extension Office
The Alfalfa County OSU Extension office sits in Cherokee, the county seat, and its pages cover agriculture, 4-H and a fairs and shows calendar for the northwest Oklahoma wheat country.
602 W. 5th Street, Suite 2, Cherokee, OK 73728 | 580-596-3131 Website - Atoka County OSU Extension Office
Atoka County OSU Extension works from the courthouse in Atoka and lists a 4-H program plus agriculture and family and consumer sciences educators serving the Southeast District.
200 E Court Street, Suite 105 E, Courthouse, Atoka, OK 74525 | 580-889-7337 Website - Beaver County OSU Extension Office
Beaver County OSU Extension is based in the courthouse in Beaver, seat of the Panhandle county, and lists family and consumer sciences, 4-H and ag help; it also hosts Panhandle cattle programs.
111 W. Second St., Courthouse Basement, Beaver, OK 73932 | 580-625-3464 Website - Beckham County OSU Extension Office
The Sayre office is the Beckham County hub for OSU Extension, with Sayre as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the West District (southern region).
Sayre, OK Website - Blaine County OSU Extension Office
The Blaine County OSU Extension office in Watonga serves the county seat of Watonga and the West District (northern region), listing 4-H youth clubs, agriculture help, horticulture advice and family and consumer sciences classes.
212 N. Weigle, Watonga, OK 73772 | 580-623-5195 Website - Bryan County OSU Extension Office
Bryan County residents reach OSU Extension at its Durant office, part of the Southeast District; staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
1901 S. 9th Ave., Durant, OK 74701 | 580-924-5312 Website - Caddo County OSU Extension Office
OSU Extension in Caddo County is run from Anadarko (county seat Anadarko) within the West District (southern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
1202 East Central Blvd., Anadarko, OK 73005 | 405-247-3376 Website - Canadian County OSU Extension Office
Local 4-H, livestock and crop questions in Canadian County go to the OSU Extension office at El Reno; it also offers horticulture, FCS and OHCE resources under the West District (southern region).
El Reno, OK Website - Carter County OSU Extension Office
The Ardmore office is the Carter County hub for OSU Extension, with Ardmore as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the Southeast District.
107 1st Ave SW, Courthouse Annex, Ardmore, OK 73401 Website - Cherokee County OSU Extension Office
Cherokee County OSU Extension serves Tahlequah, the county seat, with 4-H, agriculture and OHCE programs; its calendar has used the Cherokee County Livestock Arena on North Douglas Avenue for events.
Tahlequah, OK Website - Choctaw County OSU Extension Office
Choctaw County residents reach OSU Extension at its Hugo office, part of the Southeast District; staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
Hugo, OK Website - Cimarron County OSU Extension Office
OSU Extension in Cimarron County is run from Boise City (county seat Boise City) within the West District (northern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
Boise City, OK Website - Cleveland County OSU Extension Office
Local 4-H, livestock and crop questions in Cleveland County go to the OSU Extension office at Norman; it also offers horticulture, FCS and OHCE resources under the Southeast District.
Norman, OK Website - Coal County OSU Extension Office
The Coalgate office is the Coal County hub for OSU Extension, with Coalgate as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the Southeast District.
Coalgate, OK Website - Comanche County OSU Extension Office
The Comanche County OSU Extension office in Lawton serves the county seat of Lawton and the West District (southern region), listing 4-H youth clubs, agriculture help, horticulture advice and family and consumer sciences classes.
Lawton, OK Website - Cotton County OSU Extension Office
Cotton County residents reach OSU Extension at its Walters office, part of the West District (southern region); staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
Walters, OK Website - Craig County OSU Extension Office
OSU Extension in Craig County is run from Vinita (county seat Vinita) within the Northeast District, with 4-H, ag education, home horticulture and family and consumer sciences listings.
210 W. Delaware, Suite 107, Vinita, OK 74301 | 918-256-7569 Website - Creek County OSU Extension Office
Creek County OSU Extension runs its office from Kellyville while the county seat is Sapulpa, and lists 4-H, agriculture, horticulture and family and consumer sciences help in the Northeast District.
Kellyville, OK Website - Custer County OSU Extension Office
The Arapaho office is the Custer County hub for OSU Extension, with Arapaho as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the West District (southern region).
Arapaho, OK Website - Delaware County OSU Extension Office
Delaware County OSU Extension serves Jay, the county seat, with a posted office phone and 4-H, agriculture, horticulture and family and consumer sciences listings for the Northeast District.
Jay, OK | 918-253-4332 Website - Dewey County OSU Extension Office
Dewey County residents reach OSU Extension at its Taloga office, part of the West District (northern region); staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
111 S. Sexton Street, Taloga, OK 73667 | 580-328-5351 Website - Ellis County OSU Extension Office
OSU Extension in Ellis County is run from Arnett (county seat Arnett) within the West District (northern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
Arnett, OK Website - Garfield County OSU Extension Office
Local 4-H, livestock and crop questions in Garfield County go to the OSU Extension office at Enid; it also offers horticulture, FCS and OHCE resources under the West District (northern region).
Enid, OK Website - Garvin County OSU Extension Office
The Pauls Valley office is the Garvin County hub for OSU Extension, with Pauls Valley as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the Southeast District.
Pauls Valley, OK Website - Grady County OSU Extension Office
The Grady County OSU Extension office in Chickasha serves the county seat of Chickasha and the West District (southern region), listing 4-H youth clubs, agriculture help, horticulture advice and family and consumer sciences classes.
Chickasha, OK Website - Grant County OSU Extension Office
Grant County residents reach OSU Extension at its Medford office, part of the West District (northern region); staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
Medford, OK Website - Greer County OSU Extension Office
OSU Extension in Greer County is run from Mangum (county seat Mangum) within the West District (southern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
108 S. Pennsylvania Ave., Mangum, OK 73554 | 580-782-5502 Website - Harmon County OSU Extension Office
Local 4-H, livestock and crop questions in Harmon County go to the OSU Extension office at Hollis; it also offers horticulture, FCS and OHCE resources under the West District (southern region).
Hollis, OK Website - Harper County OSU Extension Office
The Buffalo office is the Harper County hub for OSU Extension, with Buffalo as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the West District (northern region).
1001 N. Hoy, Buffalo, OK 73834 | 580-735-2252 Website - Haskell County OSU Extension Office
The Haskell County OSU Extension office in Stigler serves the county seat of Stigler and the Southeast District, listing 4-H youth clubs, agriculture help, horticulture advice and family and consumer sciences classes.
Stigler, OK Website - Hughes County OSU Extension Office
Hughes County residents reach OSU Extension at its Holdenville office, part of the Southeast District; staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
Holdenville, OK Website - Jackson County OSU Extension Office
OSU Extension in Jackson County is run from Altus (county seat Altus) within the West District (southern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
Altus, OK Website - Jefferson County OSU Extension Office
Local 4-H, livestock and crop questions in Jefferson County go to the OSU Extension office at Waurika; it also offers horticulture, FCS and OHCE resources under the West District (southern region).
Waurika, OK Website - Johnston County OSU Extension Office
The Tishomingo office is the Johnston County hub for OSU Extension, with Tishomingo as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the Southeast District.
Tishomingo, OK Website - Kay County OSU Extension Office
The Kay County OSU Extension office in Newkirk serves the county seat of Newkirk and the Northeast District, listing 4-H youth clubs, agriculture help, horticulture advice and family and consumer sciences classes.
Newkirk, OK Website - Kingfisher County OSU Extension Office
Kingfisher County residents reach OSU Extension at its Kingfisher office, part of the West District (northern region); staff offer 4-H, ag and horticulture questions, soil and pest help, and family and consumer sciences programs.
Kingfisher, OK Website - Kiowa County OSU Extension Office
OSU Extension in Kiowa County is run from Hobart (county seat Hobart) within the West District (southern region), with 4-H, ag education, home horticulture and family and consumer sciences listings.
Hobart, OK Website - Latimer County OSU Extension Office
Local 4-H, livestock and crop questions in Latimer County go to the OSU Extension office at Wilburton; it also offers horticulture, FCS and OHCE resources under the Southeast District.
Wilburton, OK Website - Le Flore County OSU Extension Office
The Poteau office is the Le Flore County hub for OSU Extension, with Poteau as county seat; it lists 4-H, agriculture, horticulture and family and consumer sciences support in the Southeast District.
Poteau, OK Website
Plus 39 more. Find yours on your county's page in the Oklahoma directory.
Guide checked Nov. 11, 2026. Rules and dates change; confirm with the organizer.