South Dakota · County property tax · ACS 2024
Sully County Property Taxes
The median homeowner in Sully County pays $1,715 a year, an effective rate of 0.83%, notably lower than the U.S. average.
- $1,715
- Median tax / yr · Above-median bill
- 0.83%
- Effective rate · Above-median rate
- -14%
- vs U.S. average
- #57 of 66
- rank in SD
The verdict
Homeowners in Sully County pay a median $1,715 a year in property tax, an effective rate of 0.83%, more affordable than 48% of U.S. counties (Census ACS 2024).
- $1,715
- Median annual tax bill, 2024
- 0.83%
- Effective rate on median home
- #1639 of 3135
- U.S. counties by tax burden
- -14%
- vs the national average bill
Effective rate is the median property tax bill divided by the median home value ($205,400). U.S. Census Bureau, ACS 5-Year Estimates · 2024.
Tax affordability score · Sully County, SD
50/100
5 ACS dimensions · release 2024
Comparative score against U.S. county percentiles on Census ACS medians (effective rate, bill, income share, mortgage gap, home-value/income). Higher means more affordable on those published medians, not a recommendation to buy, sell, appeal, or move, and not your personal tax bill. Missing inputs drop out and redistribute weight. How it is calculated.
Median home value relative to Sully County's median income
Median tax as a share of Sully County's median household income
Mortgaged vs free-and-clear median bill gap in Sully County
Sully County's effective rate vs U.S. county percentiles (ACS 2024)
Sully County's median annual property-tax bill vs U.S. counties
Read the chart values
- Housing pressure: 55/100 (C-) · 2.83×
- Income room: 54/100 (C-) · 2.4%
- Mortgage premium: 51/100 (C-) · +$296
- Rate relief: 48/100 (D) · 0.83%
- Bill size: 47/100 (D) · $1,715/yr
Track this county alongside up to five others. Saved figures refresh when the annual source data changes.
Census Bureau ACS property tax data for South Dakota. Population: 1,526. Owner-occupied homes: 464.
The median annual property tax in Sully County is $1,715, which is 37% lower than the South Dakota state average and 14% below the national average. The effective tax rate is 0.83% on a median home value of $205,400. Property taxes represent 2.4% of the median household income in this county.
What This Data Tells Us About Sully County
Primary signal
The bill sits below the South Dakota median
Homeowners in Sully County pay a median annual property tax of $1,715, notably lower than the national median and well below the South Dakota state median. On a $205,400 median home, that works out to an effective rate of 0.83% once the local assessment base and millage are combined.
Decision signal 2
High among South Dakota counties by effective rate
Sully County ranks #57 of 66 counties in South Dakota by effective rate (14% of in-state counties pay a lower rate).
Decision signal 3
Income and the tax bill sit in the middle band
Property taxes in Sully County run within the commonly cited 2%-4% national benchmark, at about 2.4% of the $72,578 median household income.
Decision signal 4
The effective rate sits near the national middle
Sully County's 0.83% effective rate sits near the middle of 3,135 tracked counties (more affordable than 48%).
Decision signal 5
The latest release held the bill roughly steady
Since 2023, the published ACS median estimate has held roughly steady, up 1.1%, from $1,697 to $1,715. This compares two release estimates; it does not identify a local policy, assessment, exemption, or household-bill cause.
This page is for informational purposes only and is not tax, legal, or financial advice. Figures describe the median homeowner household in Sully County as reported to the Census Bureau, your own bill can differ based on your parcel's assessed value, exemptions, special districts, and municipal overlays. Always consult your county assessor, tax collector, or a qualified professional before making decisions that depend on these numbers.
How to read this county's bill
The bill here climbed steeply over 2020-2024, up 39% from $1,236 to $1,715. These ACS medians describe the reported change; they do not identify whether a levy, assessment, home value, or change in the responding households caused it.
The heaviest band is also the fullest one here: 103 of 464 owner-occupied homes (22.2%) report annual real-estate taxes above $3,000. That band has no upper edge in the source, so the county median understates the burden carried by the plurality rather than describing it.
Both the income and the rate here sit in the third quarter nationally, and the median bill is 2.4% of median household income. Two above-average figures pulling in opposite directions is why the rate on its own is a poor guide.
The share above is the median annual bill divided by median household income, a ratio of two county-level medians rather than a household-by-household figure.
What Sully County Homeowners Actually Pay
The single largest group of Sully County homeowners, 103 of 464 owner-occupied homes (22.2%), pays $3,000 or more a year. The median is one point in this spread, not a typical bill.
- Less than $800 21.8% (101)
- $800 to $1,499 18.5% (86)
- $1,500 to $1,999 21.8% (101)
- $2,000 to $2,999 15.1% (70)
- $3,000 or more 22.2% (103)
Census ACS 2024, table B25102. Bands and the no-tax share sum to 100%.
With vs Without Mortgage
In Sully County, mortgaged homeowners pay 19% more than those without a mortgage, a gap that typically tracks higher home values rather than a different tax rate.
How Sully County compares
Effective property tax rate (median tax ÷ median home value), ACS 2024.
Sully County's effective rate is higher than 14% of the 66 counties in South Dakota - ranking #57 of 66 for property tax burden.
Where Sully County sits among every U.S. county
Effective property tax rate (median tax ÷ median home value)
0.83% more affordable than 48% of 3,135 U.S. counties
Show national distribution
Each bar is a band; taller bars hold more U.S. counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2024
What changed since 2020
The median bill in Sully County moved from $1,236 in the 2020 release to $1,715 in 2024, a change of about 39%. These are American Community Survey 5-year estimates compared across releases that share only one sample year, which is why this page never compares consecutive releases: those overlap in four years of the same households and move mostly on sampling.
Sully County vs Benchmarks
| Metric | Sully County | South Dakota Avg | U.S. Avg |
|---|---|---|---|
| Median Annual Tax Above-median bill | |||
| Effective Tax Rate Above-median rate | |||
| Median Home Value | |||
| Tax as % of income Below-median income burden | 2.4% | - | - |
Source: U.S. Census Bureau, ACS 5-Year Estimates. Tax-burden differences across rows reflect millage decisions, assessment-ratio practices, and the residential-vs-commercial mix of each tax base.
Sully County stamps UNDER · MID - still check the parcel card
On Sully County's published figures (UNDER · MID), a $205,400 median home carries a $1,715 median bill, so every 10% off an assessed value is worth about $172 a year at the same rate. Whether an appeal is worth filing depends on your own parcel. Use our free Appeal Savings Estimator to run your own numbers, then read our step-by-step appeal guide for the procedure in South Dakota.
Property Tax History · UNDER · MID
| Year | Median Tax (vs prior release) | Effective Rate |
|---|---|---|
| 2024 | $1,715 +1.1% | 0.83% |
| 2023 | $1,697 +7.7% | 0.85% |
| 2022 | $1,575 +22.6% | 0.83% |
| 2021 | $1,285 +4.0% | 0.95% |
| 2020 | $1,236 | 0.94% |
Each row is a separate ACS 5-year release, and consecutive releases share four of their five survey years. The percentage beside each bill is therefore movement in the published estimate against the previous release, not a single year's tax change. The two releases largely describe the same households. For change over time, compare releases that do not overlap.
Tax Burden
Tax Affordability Score
An effective rate notably lower than the national average of 0.92% puts Sully County in the "Affordable" band for property tax burden.
How this score is calculated: a 1-10 scale derived mechanically from the ratio of this county's effective rate to the national average effective rate (0.92%) - a ratio at or below 0.5× scores 10, a ratio at or above 2.0× scores 1, with a linear scale between. It is a factual comparison of Census figures only, not a recommendation, quality rating, or endorsement of Sully County or any other county.
Counties with similar tax profiles
On effective rate, Sully County sits nearest Bamberg County (SC), Union County (OR), Pike County (OH).
On published median-tax change, the nearest matches are Utah County (UT), Merced County (CA), Jackson County (TX).
How peers are chosen
These are the nearest cross-state matches in the published Census data, not neighboring counties or recommendations. Peers are rebuilt with each data release; see the calculation method.
Similar effective rates
Similar published median-tax changes, 2020–2024
What tax filers report in Sully County
The IRS county file records no returns reporting real estate taxes on Schedule A for Sully County. That is a limit of the published data rather than a finding about the county: county-level figures are withheld where the counts are too small to disclose safely, which is common in places with few filers. Roughly one county in sixteen is in this position, so the filer view available elsewhere on this site is simply not available here. Source: IRS Statistics of Income county data.
Other Counties in South Dakota
Frequently Asked Questions
How does Sully County property tax compare to the national average? ▼
Are property taxes increasing in Sully County? ▼
What percentage of income goes to property taxes in Sully County? ▼
What is the average property tax in Sully County, South Dakota? ▼
What is the tax affordability score for Sully County? ▼
What to do with Sully County's numbers
- Inside South Dakota, Sully County's $1,715 median bill runs low versus the state median - check peer counties before assuming the lowest bill is the best move. South Dakota overview →
- Sully County ranks #57 of 66 South Dakota counties by effective rate - on the lower-burden half of the state ACS set. South Dakota overview →
- If Sully County's assessment looks high versus the $205,400 typical home, check South Dakota's filing window and evidence rules before the notice deadline passes. How to appeal →
Effective-rate definition
Effective rate is the county median tax divided by the county median home value ($205,400); your parcel's assessed value, exemptions, and local levies determine your actual bill. U.S. Census Bureau ACS · 2024.
Nationwide peers by effective rate & median bill
Two PlainPropertyTax-derived comparison paths for Sully County, both outside South Dakota so the link neighborhoods are not the same-state geography lattice. Axes stay disjoint: median-bill peers exclude the effective-rate peer set.
Similar effective rate
Nearest out-of-state counties by ACS effective rate. This county: 0.83%.
Similar median bill
Nearest out-of-state counties by ACS median annual tax. This county: $1,715/yr. Rate peers are excluded so the two link sets stay distinct.
Read with Sully County
Nearest ABS(median_tax) ACS peers for Sully County (UNDER · MID), replacing the old fixed Keep exploring strip.
UNDER MID
Yoakum County, TX
ABS(median_tax) peer · tied with Sully County at $1,715/yr; rate 0.94% vs Sully County 0.83%.
Clark County, IN
ABS(median_tax) peer · $1,716/yr (near-tied bill ABS $1); rate 0.77% vs Sully County 0.83%.
Franklin County, KY
ABS(median_tax) peer · $1,716/yr (near-tied bill ABS $1); rate 0.79% vs Sully County 0.83%.
Coffey County, KS
ABS(median_tax) peer · $1,717/yr (near-tied bill ABS $2); rate 1.09% vs Sully County 0.83%.
South Dakota county set
State ACS overview for every published South Dakota county rate and median bill.
Assessment cycle basics
Sully County stamps UNDER · MID - how assessed value and millage become the ACS median bill.
Data vintage and method
Data as of 2024. Source: U.S. Census Bureau, American Community Survey 5-Year Estimates.
Property tax data reflects median amounts paid by homeowners. Effective rates are calculated as median tax divided by median home value.
Share and download this county card
Editorial standards and provenance
PlainPropertyTax is rendered directly from the U.S. Census Bureau's American Community Survey (ACS) 5-year estimates, no number is typed in by an editor. This page draws directly on the Census ACS county-level record for Sully County. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-09.