Radcliff ZIP Areas at a Glance
Two postal codes have distinct roles in Radcliff records. One handles standard street delivery. The other identifies post office box mail. Mixing them can create a false address match, especially when a form lists a mailing address but a parcel record lists the physical site. USPS remains the authority for current delivery formatting, while Hardin County offices control parcel and legal records.
| ZIP | Radcliff area served | Postal type | Research use |
|---|---|---|---|
| 40160 | Standard street-delivery addresses associated with Radcliff | Radcliff Post Office, 590 W. Lincoln Trail Blvd.; standard ZIP | Confirm the city line and parcel situs after postal lookup |
| 40159 | Radcliff post office boxes, including City Hall box mail | Radcliff P.O.-box service; PO BOX ZIP | Mailing identity only, not a street-resident area |
A Kentucky Public Service Commission-hosted USPS document labels 40159 “PO BOX” and 40160 “STANDARD” for Radcliff in Hardin County. Postal products can change, so verify current routing with USPS. The Radcliff ZIP code directory uses these labels to explain type, not to draw a permanent boundary.
Radcliff's Two-ZIP City Hall
Radcliff City Hall demonstrates both postal roles. Its physical office is 411 W. Lincoln Trail Blvd., Radcliff, KY 40160. Its mail goes to P.O. Box 519, Radcliff, KY 40159-0519. Both lines are valid because one names the street site and the other routes box mail.
A 40159 result can point to a box used by a person, office, or institution, but it does not locate a home or parcel. A 40160 line supports street delivery, yet it still does not prove occupancy. Compare the ZIP with the PVA situs line, which names the physical parcel, and keep the mailing field separate.
Keep both lines. Store a Radcliff street address and P.O. box as separate facts, each with its source date and postal purpose.
Verify a Radcliff ZIP Code
The USPS ZIP Code Lookup supports address, city-and-state, and cities-by-ZIP searches. In address mode, the street is required and a company name is optional. Save the standardized output instead of guessing at abbreviations. USPS warns that a ZIP result does not confirm that a person or company occupies the address.
| USPS search | Useful result | Limit |
|---|---|---|
| By Address | Standard street line and delivery ZIP | Does not establish an occupant |
| By City & State | Postal-city ZIP association | Does not draw the legal city line |
| Cities by ZIP | Associated postal city names | Does not show parcel ownership |
| ZIP+4 | Delivery-segment detail | Does not create a household roster |
Use the USPS result to clean a delivery line. Then move to the right custodian for ownership, voter status, a license, or another lawful question. A postal result is useful evidence, but it is never a resident finding by itself.
Find Radcliff Residents by ZIP
A ZIP code directory is a broad first filter. Radcliff does not have one open, official ZIP-wide resident roster. Kentucky's Occupations and Professions portal offers city, state, and ZIP controls, but those fields describe license geography. Qualified State Board of Elections requests may seek household-by-ZIP output under SBE-84. The ordinary voter lookup does not provide an open ZIP search.
- Verify the delivery ZIP at USPS and decide whether the line is standard street mail or a post office box.
- Choose an official source that lawfully supports the question. Use a ZIP field only where the live portal or request form offers it.
- Narrow with a full name, street, parcel ID, precinct, board, or date. Never infer a resident from ZIP alone.
- Compare the match with another official record. For street-level work, use the Radcliff Street Directory.
Hardin qPublic and GIS may display ZIP or mailing values in a result, but research did not verify a Hardin ZIP filter in the live dynamic systems. Start with an address or owner when the form supports it, or contact the PVA. Do not promise a control that was not captured.
Match Radcliff ZIP and Parcel
Keep three address strings separate. The modern USPS line is for delivery. The PVA or GIS situs label points to the physical parcel. The deed legal description identifies land through a subdivision and lot, acreage and road, metes and bounds, or a prior deed. A postal correction does not by itself create a new parcel or owner.
Preserve the Hardin parcel ID exactly, including leading zeros and hyphens. County pages show numeric, hyphenated map IDs but do not publish a digit-by-digit key. Do not decode a segment without PVA confirmation. When a deed has only a legal description, bridge it through the parcel ID and map instead of forcing it into a postal street line.
PVA can connect an owner with a parcel, mailing line, sales history, and assessment facts. GIS adds map context. The County Clerk's land index is searched by person rather than address. That split is why a clean postal line begins the trail but cannot finish it.
Radcliff ZIPs and Precinct Names
Hardin election geography gives more detail than the two postal labels. The public map names Radcliff East, North, Northwest, West, Southwest, South, and Southeast. Nearby labels include Fort Knox 26 and 27, Veterans, Parkway, Woodland, City Park, and Lincoln Trail North and South. A precinct name can narrow a broad place clue.
A precinct is not a postal zone and does not prove parcel ownership. Use it to orient an election record under the proper access rules, then return to USPS for delivery and PVA/GIS for land. Fort Knox's edge makes that split important: a Radcliff mailing label, Fort Knox precinct, and Hardin parcel describe different geography.
Bulk voter data is purpose-limited. SBE-84 requires a qualifying category and oath, bars commercial use, and may offer paper lists or labels by street or household ZIP. Social Security numbers and email are exempt. Protected voters are not a normal street list, while the public Voter Information Center is a narrow lookup requiring known details.
Radcliff ZIPs Versus City Limits
A ZIP code serves mail. Radcliff's city limit is municipal, and Hardin County's parcel fabric is another layer. They need not match. A mailing city named Radcliff may occur outside the exact city polygon, while a nearby parcel can use another postal city. No official current street-by-street ZIP polygon comparison was located, so no boundary should be invented from a map label.
Use county GIS for parcel and city context, with its warning that boundaries are informational and not survey-grade. City Planning and Building handle annexation, subdivisions, zoning, street maps, and permit context. USPS controls delivery city and ZIP. For a legal line question, ask the city and preserve the annexation or planning record.
- ZIP code
- A postal delivery area, not a political boundary or resident roll.
- ZIP+4
- Four digits that refine a delivery segment for a standardized address.
- PO-box ZIP
- A code for box delivery, such as Radcliff's 40159.
- Unique ZIP
- A code for one high-volume organization; none was confirmed for Radcliff.
- Carrier route
- A USPS delivery grouping within a ZIP, not a household list.
Older Radcliff Address Labels
Historic records may predate the modern city and ZIP system. Radcliff took its name in 1919. New Stithton was absorbed by Fort Knox in 1932, and Radcliff incorporated in 1956. Old documents can use Mill Creek, New Stithton, Camp Knox, Fort Knox, a subdivision, or a road instead of a current city label.
Search Dixie and Lincoln Trail variants when a current address fails. Plats, deed descriptions, museum maps, and highway maps can tie old labels to present geography. Kentucky Transportation Cabinet maps help orient US 31W, Fort Knox, Vine Grove, and Elizabethtown, but a highway-map label is not a ZIP boundary.
No official Radcliff street-renumbering project or bridge table was found. Keep the old address verbatim, note its date, and compare subdivision, parcel, deed book/page, and adjacent roads. That is safer than assigning a modern ZIP to a historic line.
Radcliff ZIP Research Channels
Online tools are only one route. USPS verifies delivery. Hardin PVA and GIS offer online starts plus office help when a dynamic viewer fails. City Planning handles annexation or subdivision context. The State Board of Elections controls qualified voter-file requests, the proper board controls license data, and the County Clerk controls recorded instruments.
For a written request, name the record rather than asking for every person in a postal code. Give the agency a parcel ID, subdivision, street, board, precinct, date range, or document type. Kentucky's Open Records Act, KRS 61.872 through 61.880, supplies the framework, subject to exemptions and current eligibility language.
Counter help, phone contact, and a narrow request can answer what an unverified screen cannot. Note each response date because routing, city lines, and portal fields can change. These access channels keep the Radcliff ZIP code directory tied to official sources rather than assumptions.
A phone call is especially useful when a mailing line mixes a box, street, or postal-city label. Ask USPS only about delivery formatting. Ask the PVA about the parcel card and situs. Ask GIS staff about the map layer and its date, and ask City Planning about the municipal line. Each office answers a smaller question, which is more reliable than asking one system to settle them all.
Save the exact wording of each reply and the date received. If an agency sends a map, legend, parcel card, or written decision, keep it with the standardized address. That source trail makes a later ZIP code change easy to spot and prevents a postal edit from being mistaken for a move, sale, annexation, or change of resident.