Washington County, Oklahoma


General Information
Assessor Last Updated: 1/6/2025
Assessor Data Date: 12/16/2024
Mapped: 93.14%
Major Cities: Dewey, Copan, Ochelata, Ramona, Vera, Bartlesville
Total Population: 53,706
Total Parcels: 30,569
Water Area (sq. miles): 8.80
Land Area (sq miles): 415.00
County Officials
Assessor: Steve Campbell (918) 337-2830
Collector: Brad Johnson (918) 337-2810
County Clerk: Marjorie Parrish (918) 337-2840
Sheriff: Rick Silver (918) 332-2810
Treasurer: Brad Johnson (918) 337-2810
Millage Rates
District School City Millage
10 I-18 CANEY VALLEY 94.14
11 JI-6 COLLINSVILLE 104.04
12 I-30 BARTLESVILLE 120.09
12.1 I-30 BARTLESVILLE (TIF1) 120.09
12.2 I-30 BARTLESVILLE (TIF2) 120.09
12.3 I-30 BARTLESVILLE (TIF3) 120.09
12.5 I-30 BARTLESVILLE(TIF12) 120.09
12.7 Bartlesville SD 119.53
12.8 I-30 BARTLESVILLE(TIF10) 120.09
12.9 I-30 BARTLESVILLE (TIF9) 120.09
13 I-18 CANEY VALLEY 94.14
14 I-7 DEWEY 102.75
15 I-7 DEWEY 95.31
16 I-7 DEWEY 95.31
17 I-4 COPAN 87.39
18 I-4 COPAN 87.39
19 JI-3 OKLAHOMA UNION 93.57
2 I-18 CANEY VALLEY 94.14
20 I-30 BARTLESVILLE 105.15
21 I-18 CANEY VALLEY 109.08
22 BARTLESVILLE S007 110.25
3 JI-7 SKIATOOK 103.38
4 I-18 CANEY VALLEY 94.14
5 JD-35 AVANT 81.72
6 JD-35 AVANT 81.72
7 JI-7 SKIATOOK 105.13
8 I-30 BARTLESVILLE 105.15
9 JI-6 COLLINSVILLE 105.79