A listing that says Zionsville can mean four different things, and the differences are worth real money. The mailing address comes from the Postal Service. The tax bill comes from the municipality and county. The school assignment comes from the school district. None of those boundaries were drawn to match the others, and around the edges of town they visibly disagree. This page maps the disagreements, using county parcel records.
The four definitions
1. The town
The Town of Zionsville, a Boone County municipality covering Eagle and Union townships plus territory added in the 2010s reorganizations. It sets the municipal share of the tax rate and provides police, streets, parks, and the pathway network. Its planning decisions and town council apply only inside these limits.
2. The school district
Zionsville Community Schools assigns students by residence, not by mailing address. The district includes land in Whitestown's limits, and excludes some land in Zionsville's. Check any address with the attendance lookup, then confirm with the district.
3. The mailing address
ZIP code 46077, drawn for delivery routes. It crosses both the Marion and Hamilton county lines, so hundreds of homes outside Boone County carry Zionsville addresses. Entrance signs and listings usually follow the mailing address, which is how the confusion starts.
4. The county
Boone County keeps the deeds, assessments, and tax bills for Zionsville proper. A Zionsville-addressed home in the Marion or Hamilton pocket is assessed and taxed by that county instead, and its records live there.
Where the homes actually fall
Counted from the county parcel records this site is built on; the figures update with each annual parcel refresh.
| Situation | Parcels | What it means |
|---|---|---|
| Town of Zionsville, Zionsville schools | 12,985 | All four definitions line up. Town-district rate $2.0336/$100 (rural town districts pay $1.8531). |
| Whitestown limits, Zionsville schools | 1,720 | The Anson side: Zionsville by schools and mail, Whitestown by law. Whitestown services and council, and a higher rate ($2.8894). Examples: Clark Meadows, Westwood Landing, Eagles Nest. |
| Town of Zionsville, Lebanon schools | 769 | The reverse case, along the town's western and northwestern edges (the Worth and Perry township areas). Today it is mostly farmland: only 16 of these parcels have a home on record. If that land develops, its buyers get Zionsville government and Lebanon schools. |
A Zionsville address that isn't Zionsville at all
The 46077 ZIP code crosses both of Boone County's neighboring county lines, and on the far side of each is a pocket of subdivisions whose homes carry Zionsville mailing addresses while sitting entirely in another city, county, and school district.
East of the county line: Carmel
West Clay Township, Hamilton County. About 936 parcels with Zionsville addresses as of July 2026. Students attend Carmel Clay Schools; the 2026 Carmel–Clay district rate is $2.0167/$100.
Abney Glen · Cass Estates · Long Branch Estates · Park Northwestern · Sanctuary at 116th Street · Townes at Weston Pointe · Waterfront of West Clay · Woodhaven
South of 96th Street: Indianapolis
Pike Township, Marion County. West 96th Street is the county line; these subdivisions sit just below it. Students attend MSD Pike Township, and property records live with the Marion County assessor.
What the differences cost
Taxes. Within Boone County, the certified 2026 rates run $1.8531 per $100 in the rural town districts, $2.0336 in the town districts, and $2.8894 on the Whitestown side. Every Zionsville-schools address also pays the district's cap-exempt referendum share ($0.3433). The tax estimator works these out for a real address. Homes in the Marion and Hamilton pockets are billed by those counties under different rates entirely.
Schools. Homes with Zionsville mailing addresses are assigned, by location, to four different districts: Zionsville Community Schools, Lebanon Community Schools, Carmel Clay Schools, or MSD Pike Township. The mailing address guarantees nothing. Assignments also change over time, so confirm any address with its district before relying on it.
How to check one address
- Run it through the school attendance lookup. It answers from the district's own list, and it says so plainly when an address is outside the district.
- Open its property page here. For Boone County homes it shows the legal municipality, taxing district, council district, and the actual tax bills on record.
- If it sits in one of the pockets above, look it up with that county instead: the Marion County Assessor for the 96th Street pocket, Hamilton County property records for the West Clay pocket.
How this is built
Parcel counts are computed from county parcel records (IndianaMap statewide layer) over this site's canonical parcel set and refresh with the annual parcel update. Tax rates are the certified 2026 DLGF figures. The Marion and Hamilton pocket parcel counts were measured from the statewide layer in July 2026; county-recorded addresses can lag what the Postal Service actually delivers, so treat them as close, not exact. Boundaries and district lines change; verify anything decision-grade with the county or district that owns it.