Round Lake Beach ZIP Evidence
Official Lake County records place Round Lake Beach-labeled addresses in three ZIPs. That evidence does not mean each ZIP lies wholly inside the village. It means a county tax, assessment, delinquent-tax, or polling record paired the municipal label with that postal code. The Round Lake Beach ZIP code directory keeps those distinctions visible.
| ZIP | Round Lake Beach Evidence | Post Office | Search Note |
|---|---|---|---|
| 60073 | County parcel card and polling-place material | Round Lake, 1940 N Municipal Way | Common local service code; extends beyond one city label |
| 60046 | County delinquent-tax publication with RLB-labeled addresses | Lake Villa, 206 Cedar Avenue | Postal and municipal names differ |
| 60030 | Avon 2025 assessment list with an RLB-labeled address | Grayslake, 75 Commerce Drive | Official example, not a complete boundary map |
No verified official source supplied a complete village ZIP boundary map or a local split history. For one address, use USPS first, then compare the assessor situs, parcel PIN, and GIS municipality field. This prevents a postal code from being mistaken for a village line.
The three codes are evidence-backed starting points, not a claim that no other delivery pattern can appear. Exact USPS results are interactive and can change with the address entered. Save the full result, including any ZIP+4, then date the county record used beside it. This keeps the Round Lake Beach ZIP code directory useful when a later tax roll or postal update changes the displayed text.
Round Lake Beach ZIP 60073
The Round Lake Post Office serves 60073 from 1940 N Municipal Way, Round Lake. Its official phone is 847-740-6528. Lake County's sampled parcel card for a Round Lake Beach property also uses 60073, and the county polling-place PDF lists a Round Lake Beach site in that ZIP.
Those matches make 60073 a strong first search value, not a boundary claim. USPS service areas can cross municipal lines. An assessor result should still be checked for municipality, township, PIN, and legal description. The tax card may also show a mailing address that differs from the property location.
The county's parcel sample shows how much context sits behind one ZIP entry. Its profile includes an assessment year, pay year, neighborhood label, lot and block, subdivision, township, municipality, and taxing districts. Each field can help identify the correct Round Lake Beach parcel. None expands the parcel card into a list of all residents at that address.
See the official Round Lake Post Office listing before relying on station details.
The captured USPS page ties the station to its service code and gives a current point for counter details.
Why Round Lake Beach Uses 60046
The Lake Villa Post Office serves 60046 at 206 Cedar Avenue, Lake Villa. An official Lake County delinquent-tax publication includes Round Lake Beach-labeled properties with that ZIP. This is clear evidence that the postal city and municipal label do not form a one-to-one pair.
The same area has overlapping service geographies. Lake Villa District Library says its township service area includes parts of Round Lake Beach, Round Lake Heights, and Antioch. A library district, township, postal zone, and village line should therefore occupy separate columns in research notes. Each answers a different question.
Use the ZIP code directory as a filter when a name is common. A 60046 property hit can be compared with its Lake County PIN, recorded deed party, or dated assessment entry. Do not reject the hit merely because the post-office name says Lake Villa. Likewise, do not call it a Round Lake Beach parcel until the county municipality or village record supports that description.
Check the USPS Lake Villa station page for the source record.
The image confirms the official postal office context behind 60046, while county land records establish the parcel's local government geography.
Round Lake Beach ZIP 60030
The Grayslake Post Office serves 60030 from 75 Commerce Drive, Grayslake. The official Avon Township 2025 assessment list contains a Round Lake Beach-labeled address with 60030. That dated assessment entry is a useful clue, but it does not define the full reach of the ZIP or the village.
When a 60030 record appears, preserve the source year. Then search the parcel by address or PIN. Assessment lists change, and a later annexation, parcel split, or corrected address may alter the municipal field without erasing the recorded land trail.
County GIS maintains tax data, parcel splits and merges, legal-document corrections, new PINs, addresses, and district boundaries. That makes GIS the right fallback when an old 60030 street search fails. Locate the parcel on the current map, record its PIN and legal description, then use those values in the tax and recorder systems instead of forcing an outdated postal label.
Open the Grayslake Post Office listing to verify current station details.
The USPS capture supplies postal context; the county assessment source supplies the Round Lake Beach label for the dated property record.
Search Round Lake Beach by ZIP
A ZIP can narrow a large set, but it should not be the only key. The Lake County assessor provides the clearest verified ZIP-capable property search. USPS verifies delivery text, while GIS checks municipal and district geography. The recorder and voter systems use different fields and rules.
- Verify the exact address with the USPS ZIP lookup. Its interactive result was not exposed in the research text, so read the live result.
- Open the Lake County property search. Use one main mode: parcel ID, owner, or address number plus street. Add ZIP only as a filter.
- Save the result's situs address, mailing address, PIN, municipality, township, and legal description. Do not merge the situs and mailing fields.
- Check Maps Online for the parcel and district context. Dynamic controls may change, so carry the PIN.
- Use PublicSearch by address, parcel, or legal description if a transfer record matters. No verified all-ZIP recorder mode exists.
Once a ZIP search reaches a specific road, the Round Lake Beach street directory gives the full address and parcel sequence.
Round Lake Beach ZIP Filters
The assessor's Basic search has a ZIP Code field, but the portal instructions make it secondary. Start with exactly one main path. Parcel IDs are entered without dashes. Owner names use LastName, FirstName. Address searches need Address No plus Street. A wildcard is assumed at the end, and an asterisk may be inserted.
| Field | Use | Format or Limit |
|---|---|---|
| Parcel ID | Stable land-record key | Enter without dashes |
| Owner | Find parcels under a recorded owner | LastName, FirstName |
| Address No + Street | Find a situs or property location | Use both address parts |
| Unit | Narrow a multi-unit address | Optional where shown |
| ZIP Code | Limit matches in portal address data | Optional filter, not a city-boundary test |
| Sort / results per page | Organize returned parcels | Display controls only |
The portal can return owner, location, mailing address, PIN, tax year, neighborhood, lot and block, municipality, township, and district fields. A search result is a parcel record, not a roster of all Round Lake Beach residents in that ZIP.
Other access channels remain useful. Assessor and GIS staff can answer parcel questions at 847-377-2050 and 847-377-2388. Recorder terminals cover modern index work and older books, with 1980 as the stated online cutoff. Library maps, newsletters, census profiles, and community guides can explain an older address form. For an existing village annexation or permit record, submit a precise request by date, address, and PIN.
PINs Survive Shifting Geography
A 2024 Round Lake Beach Village Board agenda and an Avon packet discussed the Fairfield Road and Poplar property by two parcel numbers. The records document an annexation proposal and its land identifiers. Unless a later approval record is found, the item should remain described as a proposal, not a completed boundary change.
The practical lesson is strong. A municipal label can change while the PIN and legal history remain available. Lake County announced new Maps Online in January 2026 and a new Tax Parcel Viewer in March 2026, making the current map and tax interfaces the best place to check today's geography. Older agendas preserve the dated context.
Round Lake Beach ZIP Boundaries
A ZIP code serves mail delivery. It does not prove title, current occupancy, household membership, township, precinct, or village limits. Round Lake Beach polling materials use both Avon and Lake Villa precinct labels. County tax records can carry 60030, 60046, or 60073. These overlaps are expected, not errors to smooth away.
- ZIP versus ZIP+4
- A five-digit delivery area versus a more precise four-digit delivery segment appended to it.
- PO-box ZIP
- A code or segment used for post-office box delivery rather than a street boundary.
- Unique ZIP
- A code assigned to one high-volume organization; none was verified for Round Lake Beach.
- Carrier route
- A USPS delivery sequence within a ZIP, not a municipal district.
- Situs address
- The physical property location shown in land and tax records.
For records, match the tool to the key. USPS handles delivery. The assessor and GIS handle property and map context. The PIN and legal description bridge to deeds. Election offices use precinct and district geography under voter-file rules. The Village or County can answer a narrow request for an existing annexation or address record, but FOIA does not force an office to create a new ZIP boundary list.
Boundary check. Verify exact address, USPS ZIP, assessor situs, PIN, and GIS municipality before describing a parcel as inside Round Lake Beach.