Warrick County is the residential pressure release valve for the Evansville metropolitan area. While Vanderburgh County contains Evansville itself, Warrick — directly east — has absorbed decades of suburban growth into Newburgh, Boonville, Chandler, and the unincorporated areas along the Ohio River and the SR-66 corridor. The 2026 Form 11 Notices of Assessment arriving this spring reflect both Warrick's role as Evansville's preferred suburb and the statewide DLGF cost-table reset that pushed AVs up across all 92 Indiana counties.
For roughly 64,000 Warrick County residents, the practical message is the same one applying everywhere in Indiana: read the Form 11, verify the components, and decide on an appeal before the June 15, 2026 deadline.
Warrick County 2026 calendar: Form 11 notices typically mail in mid-to-late April. The statewide appeal deadline is June 15, 2026. Spring tax installment is due May 11, 2026; fall installment is due November 10, 2026.
The Newburgh Premium
Newburgh has the highest median home values in Warrick County by a wide margin — substantially above Boonville and the smaller communities. The town's location along the Ohio River, its proximity to Evansville's east-side employment, and its school district draw all push median values higher.
That premium has implications for the 2026 Form 11:
- Newburgh assessments are more sale-data-rich. Higher transaction volume gives the assessor more comparable sales for trending, which generally means tighter alignment between AV and market.
- Cap exposure is lower. Newburgh's effective rate runs near 0.89% at the median, well below the 1% homestead cap ceiling. AV increases tend to translate more directly to bill increases here than in higher-rate parts of Indiana.
- River-adjacent parcels carry land-side weight. Properties along the Ohio River corridor derive substantial value from the land component. Land-side AV changes deserve close scrutiny.
Boonville and the County Seat
Boonville, the county seat, anchors the western side of Warrick County and offers a different market profile from Newburgh. Median values run lower; the housing stock is older on average; and the commercial and industrial base — including the historic coal-related infrastructure — adds parcels that operate at the 3% cap rather than the 1% or 2% caps that apply to residential parcels.
Boonville's median tax rate runs near 0.89% within the county, comparable to Newburgh on a percentage basis but applied to lower median AVs.
What Drives Warrick County's 2026 Assessment Movement
Three forces shape the 2026 Form 11 in Warrick County:
1. Statewide DLGF Cost-Table Reset
The DLGF removed a downward base-cost adjustment that had been suppressing improvement values across Indiana for several cycles. Warrick County's mix of established and newer housing stock saw meaningful improvement-side adjustments as a result.
2. Evansville-Metro Sale Trending
The trending window the assessor uses captured the steady appreciation of the Evansville-metro housing market through early 2025. That appreciation flows into the annual trending adjustment the DLGF requires.
3. Continued Suburban Growth
New construction in Newburgh and along the SR-66 corridor adds new parcels and pulls comparable sale values higher across the existing stock. While Warrick is not on the pace of Indiana's fastest-growing counties, it has absorbed steady residential growth for the better part of two decades.
What to Check on Your Warrick County Form 11
The general Form 11 walkthrough applies. Warrick-specific items:
Township Assignment
Warrick County is divided into ten townships, including Anderson, Boon, Campbell, Greer, Hart, Lane, Ohio, Owen, Pigeon, and Skelton. A property near a township boundary should have its township coding verified annually.
School Corporation
The Warrick County School Corporation serves most of the county, but local school referendum history affects the effective tax rate. Verify the school corporation code on your Form 11.
Homestead Status
If you bought in 2024 or 2025 and have not filed Form HC-10, your Form 11 will not reflect the homestead deduction, the SB 1 $300 supplemental credit, or the 1% homestead cap. File at the Warrick County Auditor's Office before May 10.
River-Front Land Component
For parcels along the Ohio River, the land component drives a meaningful share of total AV. Compare the land-side AV on your 2026 Form 11 to the prior year's notice. A sudden land-only spike may reflect a neighborhood code change worth investigating.
Warrick County and SB 1
The SB 1 property tax reform package layers onto the standard 2026 cycle:
| SB 1 change | Warrick County impact |
|---|---|
| $300 homestead credit | Applies to all Warrick homesteads on spring 2026 bills |
| Supplemental deduction 35% to 40% | Reduces taxable AV on homesteads by a larger fraction |
| Business personal property exemption to $1M | Most small Boonville commercial owners qualify |
| Rental/farmland 2% deduction starts at 13.3% | Helps Newburgh rental inventory and county farmland owners |
For Warrick County's farmland owners — concentrated in the northern and eastern parts of the county — the new 2% rental and farmland deduction is a meaningful new piece of the farmland tax picture.
Appeal Strategy for Warrick County
Warrick County Form 130 filing: filed with the Warrick County Assessor's Office at One County Square, Boonville. Include 3 to 5 comparable sales from your neighborhood code, photos of any condition issues, and your own market-value opinion.
The Indiana property tax appeal guide covers the statewide process. Warrick County considerations:
- Form 130 is filed with the County Assessor at One County Square in Boonville
- PTABOA hearings are typically scheduled 3 to 6 months after filing
- The strongest evidence is comparable sales within the same neighborhood code
- For income-producing properties, include rent rolls and operating statements
The math on appeal payoff in Warrick County: at a 0.89% effective rate, every $10,000 of AV reduction translates to roughly $89 of annual tax savings. A successful $40,000 reduction recovers roughly $356 per year, compounding across the typical 5-to-7-year holding period.
Warrick County By the Numbers
| Metric | Warrick County |
|---|---|
| County seat | Boonville |
| Largest community by median value | Newburgh |
| Metropolitan area | Evansville MSA |
| Approximate parcel count | ~30,000 |
| Median effective tax rate | ~0.89% at the county median |
| Townships | 10 |
| Form 11 mailing window | Mid-to-late April 2026 |
| Appeal deadline | June 15, 2026 |
The Evansville-Metro Context
Warrick County does not exist in isolation. Vanderburgh County (Evansville) to the west, Posey County farther west along the Ohio River, and Spencer County to the east form the broader Evansville-metro tax landscape. Warrick's Newburgh-side appreciation often runs slightly ahead of Vanderburgh's east-side neighborhoods, and Warrick owners considering a relocation should compare AV trajectories across the metro before making a decision.
For investors looking at the Evansville-metro rental property opportunity, Warrick's mix of moderate effective rates, steady population growth, and the new SB 1 rental deduction makes it one of the more analytically interesting county-level opportunities in southwestern Indiana.
Filing Logistics
Warrick County tax payments are accepted at the Treasurer's Office at One County Square, Suite 270, Boonville, with a drop box at the south exit of the Judicial Center. Online payment is available through the county's portal. For appeals, in-person filing at the Assessor's Office or certified mail with return receipt are the safest options.
Property Lookup shows your AV alongside neighborhood-coded comparable sales, and Tax Appeal Automation builds the Form 130 evidence package on contingency.
When to Engage
The optimal Warrick County filing window is between mid-May and May 25 — late enough to have your Form 11 in hand, early enough to avoid the deadline crush. Decide quickly: PTABOA caseload tends to spike in the final two weeks before June 15.
Find Your Warrick County Property
- Warrick County overview
- Warrick residential parcel data
- Warrick commercial parcel data
- Warrick agricultural parcel data