Buying in Ozaukee County, Wisconsin

Ozaukee County at a glance

Ozaukee County is one of 72 counties and county-equivalents in Wisconsin. Its county seat is Port Washington. County government publishes its offices and parcel tools online. Official county website. Its 2024 Census Bureau population estimate is 93,956 across 233 square miles of land — about 403 people per square mile. In the FBI's 2024 reported-crime file, agencies here reported 622 offenses — 6.62 per 1,000 residents; the breakdown is below.

Records to check before you buy in Ozaukee County

• Property record card — the Ozaukee County assessor / appraisal office. Pull the parcel's assessed-value history, exemption status, and last sale. This is the file your future tax bill is calculated from, and it shows whether the current owner is enjoying exemptions you will not inherit. County government sits in Port Washington; the official county website is the reliable route to the parcel search and the office directory.
• Deeds & liens — the Ozaukee County recorder / land-records office. Read the deed chain, open liens, easements, and plat maps — the file a listing never mentions.
• Official flood determination. Check the exact parcel on FEMA's National Flood Hazard Layer — not the listing site's licensed model. Zone boundaries cut through streets; the house next door can be in a different zone. Ozaukee County is the primary county for 8 ZIP codes in the Census Bureau's ZIP-to-county crosswalk — and zone lines ignore every one of them.
• The county's reported-crime record. In the FBI's 2024 file, agencies in Ozaukee County reported 622 offenses — 6.62 per 1,000 residents; the largest single category was larceny-theft (392). The crime section below sets that beside the Wisconsin county median.
• Registry check. Run the address through the official Wisconsin registry and note the counts within a mile — then check again the week you close.
• Permits & code history — the Ozaukee building department. Open permits, expired permits, and code cases tell you whether the renovation in the photos was ever inspected. County permitting is run out of Port Washington.
• School assignment — the district office, not the listing. Only the district's own boundary lookup confirms which school an address is actually zoned for.

County list, land area and population: U.S. Census Bureau (population: 2024 PEP estimate). County seat and official website: Wikidata (CC0), checked 2026-11-04. Flood determinations: FEMA. Registry: Wisconsin.

Reported crime in Ozaukee County — FBI 2024

Reported crime in Ozaukee County in 2024 was overwhelmingly property crime: agencies logged 622 offenses, of which 567 were property offenses and 55 violent. The total rate is 6.62 per 1,000 residents (violent 58.5, property 603.5 per 100,000).

Inside Wisconsin, the median county in the same file recorded a violent-crime rate of 139 per 100,000 and a property-crime rate of 605 per 100,000 (medians computed from the FBI 2024 county file across 72 counties).

The largest reported categories were larceny-theft (392), burglary (148) and aggravated assault (36).

Coverage: 7 of 7 law-enforcement agencies assigned to this county reported at least one month of 2024 offense data to the FBI; 7 reported all 12 months. Counts are reported offenses only (FBI Return A / Arson master files), assigned whole to each agency's primary county; they are not adjusted for non-reporting agencies.

These are offenses reported to law enforcement — not convictions, and not a verdict on any street or address. A CurbFacts report pairs this county record with the ZIP-level picture for the specific address you are buying.

Source: FBI Crime Data Explorer, UCR Return A + Arson master files, data year 2024 (pulled 2026-11-04).

The Wisconsin rules that apply in Ozaukee County

Traps researched for Wisconsin buyers: You commit before you see the report.

Read the full Wisconsin guide — disclosure standard, tax math, registry and flood

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