The Oklahoma County Assessor's Office is open regular hours 8:00 am - 4:45 pm  Monday-Friday. We encourage the use of electronic communication as much as possible through email, telephones, or fax. If you need to meet in person, you will need to call (405) 713-1201 to set up an appointment in response to the CDC requirements regarding 6 ft of Social Distancing. Below are some commonly asked questions we have received. How do I contact the office?Please contact us through ...