Harper County, OK property tax rate
Harper County · Oklahoma · #35 of 77 in the state
Median annual property tax $634 · median home value $99,200
$634 a year · $53 a month using the area benchmark. Enter a value such as 350,000 or 350,000.00.
A rough planning estimate, not a tax quote.
Below the U.S. benchmark 0.94% (0.68×), below the Oklahoma benchmark 0.80%.
Ranked among 77 Oklahoma counties with available benchmarks.
What this benchmark means
Median real estate taxes paid ÷ median owner-occupied home value, ACS 2020–2024 — a ratio of two medians, not a statutory rate, not the median of individual bills and not your property's rate. Exemptions people already claim are reflected in the survey; your bill depends on taxable value, local districts, exemptions and reassessment after a sale.
Census figures behind this page
| Median real estate taxes paid | $634 |
|---|---|
| With a mortgage / without | $846 / $535 |
| Median home value | $99,200 |
| Median household income | $64,053 · tax is 1.0% of it |
| Median gross rent | $828 / mo |
| Owner-occupied | 84% of 1,333 homes |
| Population | 3,203 |
When it's due in Oklahoma
All states| First half | Due Dec 31 Late after Jan 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
|---|---|
| Second half | Due Mar 31 Late after Apr 1 under state law — the exact cutoff time, weekend/holiday carry-over and this year's date are on your bill. |
| Late penalty | 1.5% per month interest (18% annually) on delinquent amounts (68 O.S. § 2913(A)) |
| Appeal window | within 30 calendar days of the date notice was mailed by county assessor (68 O.S. § 2876) |
Full payment or first half due December 31 (delinquent Jan 1). If first half is paid by Dec 31, second half due March 31. If not, full amount becomes delinquent Jan 1. Regular annual schedule; tax year: calendar 2026, bills mailed Nov. Source: 68 O.S. § 2913, rules checked 2026-09-19 (url re-checked by Ori). Confirm the amount and deadline on your official tax bill.
Oklahoma counties with a similar rate
All 77How this benchmark was computed
Median real estate taxes paid by owner-occupied households in Harper County ($634) divided by the median value of those homes ($99,200), both from the Census Bureau's American Community Survey 2020–2024 5-year estimates. It is a ratio of two medians — a reasonable area benchmark, not the assessor's mill rate and not any one household's rate. Newly purchased homes are often reassessed to sale price, so a buyer's first bill can run above it. Data & method