Rock County, WI parcel owner data
30,080 parcels with the owner of record. 30,080 carry an owner mailing address (100%), and 8,522 of those are absentee — the list investors mail first. Browsing is free and unlimited on the map; one credit turns any owner into a verified phone and email, and only if one comes back.
What a county file actually lands at. 731 of these rows (2%) are owned by a government body, a school or water district, a church, a cemetery or an HOA, and every list pull strips them — so a Rock County file arrives at about 29,349 mailable rows, not 30,080. That is the number to price against.
30,080
Parcels
22 named places
8,522
Absentee owners
28% of rows
1,953
Out of state
6% of rows
7,637
LLC / trust owned
25% of rows
What Rock County publishes
A county is only as useful as the columns it fills in. This is measured on the rows themselves, not promised: how many of this county's 30,080 parcels carry each field.
| Field | Rows | Share | Coverage | Status |
|---|---|---|---|---|
| Parcel numberThe county's own APN, exactly as published. | 30,080 | 100% | Complete | |
| Latitude / longitudeParcel centroid. This is what puts the row on the map. | 30,080 | 100% | Complete | |
| Owner of recordName as the assessor publishes it, second owner kept where there is one. | 30,080 | 100% | Complete | |
| Property addressStreet address of the parcel itself. | 25,671 | 85% | Complete | |
| Property ZIPNeeded for a ZIP-scoped pull. | 30,080 | 100% | Complete | |
| Owner mailing addressOne line, as published. This is what a mail piece is addressed to. | 30,080 | 100% | Complete | |
| Mailing city / state as separate columnsSome counties publish the mailing address split into fields; most publish one line. Absentee and out-of-state are derived either way. | 0 | 0% | Not published | |
| AcreageDeeded acres. Absent in Florida and Colorado counties. | 30,080 | 100% | Complete | |
| Assessed land valueLand only. There is no improvement or total value, so equity cannot be estimated. | 30,080 | 100% | Complete | |
| Land use codeFree text from the county. Missing entirely in Texas and Florida, so a vacant-land filter matches nothing there. | 28,848 | 96% | Complete |
Read this before you filter. Mailing city / state as separate columns is under 40% populated in this county. A filter on it silently drops every row that has no value, so a range filter here will return far fewer records than the parcel count suggests.
Not in the record — for any county
- Sale date, sale price, transfer history
- Mortgage, lien, foreclosure or tax-delinquent status
- Equity (there is no total value to subtract from)
- Year built, square footage, beds and baths
- Flood, wetlands, landlocked or road-frontage flags
- Owner phone and email — those are traced on request, never stored on the parcel
Twelve real rows
Drawn deterministically by a hash of each row's own key, so these are the same twelve rows on every render and they spread across the county rather than down one street. Government, school, church and HOA owners are excluded, the way they are in a pull.
| Parcel | Owner | Property address | Owner mails from | Acres | Land value | Flag |
|---|---|---|---|---|---|---|
| 13560625 | CASH RONALD W | 774 BROOKS St, Beloit | PO BOX 701 BELOIT WI 53512-0701 | 0.20 | 93,800 | Absentee |
| 6-2-164B | MISMASH DOUGLAS | 2715 S NATURES RIDGE Rd, Beloit | 7939 24TH AVE KENOSHA WI 53143-5732 | 3.89 | 0 | Absentee |
| 13330760 | BAUSTISTA MARTINA VERA | 2300 W GRAND Ave, Beloit | 2300 W GRAND AVE BELOIT WI 53511 | 0.37 | 106,600 | Owner-occupied |
| 13410630 | LADDER PROPERTY VENTURES LLC | 943 MCKINLEY Ave, Beloit | 828 E NAKOMA CT BELOIT WI 53511-2128 | 0.14 | 62,500 | Absentee |
| 6-13-595 | HOME'S BY BURKE LLC | 3202 E GREEN St, Milton | 4437 S OAKLEY RD JANESVILLE WI 53546-9096 | 0.12 | 119,300 | Absentee |
| 6-2-270B | TRINH KATHY TRUONG | 703 W GREEN Dr, Beloit | 703 W GREEN DR BELOIT WI 53511-2082 | 0.45 | 112,600 | Owner-occupied |
| 13560550 | WISCONSIN INVESTMENT HOMES LLC | 927 W GRAND Ave, Beloit | PO BOX 2571 JANESVILLE WI 53547-2571 | 0.25 | 97,600 | Absentee |
| 6-13-1624.3 | YTTRI RANDY A | 8960 N DIX Dr, Milton | 8960 N DIX DR MILTON WI 53563-9247 | 0.75 | 343,200 | Owner-occupied |
| 6-13-398.703 | WELTER FAMILY REVOCABLE LIVING TRUST | 10703 N BAY SHORE Ln, Milton | 10703 N BAY SHORE LN MILTON WI 53563-8924 | 0.00 | 262,200 | Owner-occupied |
| 6-27-294.1041 | JORGE DARIO M | 217 GENESIS Dr, Evansville | 217 GENESIS DR EVANSVILLE WI 53536-2152 | 0.23 | 239,500 | Owner-occupied |
| 12640185 | SMITH CLANCY | 204 MIDDLE St, Beloit | 204 MIDDLE ST BELOIT WI 53511-4366 | 0.35 | 133,000 | Owner-occupied |
| 13560475 | GRAJCEVCI MUHAMET | 530 W GRAND Ave, Beloit | 3841 LUCEY ST JANESVILLE WI 53546-1511 | 0.45 | 133,000 | Absentee |
Public record data as published by the county. Phone and email are never shown here; they are resolved per owner, on request, with a right-party score.
What you can do with Rock County owner data
Pull every absentee owner in a ZIP and export the mailing addresses for a direct-mail campaign. Draw a box around a subdivision on the map and skip-trace the whole block in one job. Look up who owns the lot next to a listing, then call them with a scored number instead of sending a letter that gets thrown away.
Where the data comes from
Parcel boundaries, owner of record and mailing addresses are public records maintained by the county assessor or GIS office. Quarry pulls them from the county's own published services and refreshes on the county's cycle; the counts on this page were measured 2026-09-09. Phone and email come from the skip-trace engine, cross-checked across sources and scored, and you are only charged when a contact is found.