Compton ZIP Coverage and Reach
The working ZIP coverage map below separates verified postal facilities from supplemental designations. Postal boundaries are not municipal boundaries. A postal city line can include unincorporated Willowbrook or East Rancho Dominguez, while an incorporated parcel needs a city and county jurisdiction check. Use the ZIP as a filter, then confirm the physical parcel.
| ZIP | Areas covered | Post office | Notes |
|---|---|---|---|
| 90220 | West and central Compton delivery area | Hub City, 101 S Willowbrook Ave | City Hall and Compton Library use 90220; renamed PFC James Anderson Jr. in 2024 |
| 90221 | East and central Compton | Compton Post Office, 701 S Santa Fe Ave | Lueders Park is a verified civic address in 90221 |
| 90222 | North Compton postal area and Willowbrook context | Willowbrook, 2241 E El Segundo Blvd | A postal Compton line may fall outside incorporated city |
| 90223 | Supplemental, PO-box, or legacy designation | Not located in current facility results | Verify each address |
| 90224 | Supplemental, PO-box, or legacy designation | Not located in current facility results | Verify each address |
The ZIP Code directory should treat 90220, 90221, and 90222 as the ordinary delivery frame, while 90223 and 90224 remain verification questions rather than equal street-delivery polygons.
The Census QuickFacts profile adds official city population and land-area context, but census geography does not replace USPS address validation or parcel jurisdiction.
Compton 90220 Postal Zone and Hub City
ZIP 90220 covers a west and central Compton delivery area. The Hub City facility is at 101 South Willowbrook Avenue, and City Hall at 205 South Willowbrook Avenue and Compton Library at 240 West Compton Boulevard use the 90220 line. A federal designation renamed the Hub City Post Office for PFC James Anderson Jr. in 2024, creating a recent postal and local-history marker.
The USPS Hub City dedication notice provides the dated facility detail used in Compton ZIP code research.
The Hub City label identifies delivery service. It does not decide whether a permit request goes to Compton City Hall, Los Angeles County, or another jurisdiction. Pair the ZIP Code with parcel and council geography before naming the custodian.
The USPS facility view adds a dated local detail to the Compton ZIP code directory, not a resident roster.
The postal facility supplies a verified ZIP Code and address, while the parcel map supplies the government boundary question.
Note: Hub City confirms a postal facility and ZIP, but it does not establish incorporated-city boundaries or a household roster.
Compton ZIP 90221 Postal Addresses
ZIP 90221 serves east and central Compton, with the named Compton Post Office at 701 South Santa Fe Avenue. Lueders Park at 1500 Rosecrans Avenue is a verified civic address in this ZIP. These public places help establish the delivery geography, but a postal facility does not list the households that receive mail.
The USPS facility listing confirms the Compton-area stations used to check a 90221 address.
The facility listing confirms postal service points, while the ZIP Code directory still needs a parcel check for jurisdiction.
For an address in 90221, confirm the street and ZIP through USPS, then use the Assessor Portal by situs address or AIN. If the goal is a permit, code case, or city record, confirm that the parcel lies within incorporated Compton. If the goal is a deed, save the legal description before going to the county recorder's name-and-year index.
A ZIP Code directory search therefore moves from delivery to parcel, then from parcel to custodian. The three steps should not be collapsed into one “Compton” label.
Compton ZIP 90222 Boundary Trap
ZIP 90222 is the clearest Compton boundary trap. The Willowbrook Post Office at 2241 East El Segundo Boulevard serves the postal area, and Gonzales Park at 1101 West Cressey is a verified City 90222 address. Yet a “Compton, CA” postal line can fall in Willowbrook or another unincorporated area outside the incorporated city.
Confirm the parcel, council district, and jurisdiction before requesting City of Compton permits or code records. County GIS can supply parcel context, but incorporated-city planning and zoning decisions remain city matters. The Compton ZIP code directory should mark that boundary before sending a precise request to an office.
Boundary check. The 90222 postal line can identify delivery to Compton without proving that the parcel is inside incorporated Compton.
The difference is geographic, not a data error. Postal geography and municipal geography simply answer different questions.
Note: A 90222 postal address needs parcel and jurisdiction confirmation before a city record request is sent.
Compton 90223 and 90224 ZIPs
A Compton economic or planning document lists postal zones 90223 and 90224, but the research did not locate those as ordinary street-delivery facilities in the current USPS result. They may represent supplemental, PO-box, or legacy designations. Treat them as address verification flags, not as confirmed citywide polygons.
Use USPS's city-and-state or ZIP search for a specific address, then check the parcel map. A result should record whether USPS accepts the address, which postal city it returns, and whether the parcel is inside Compton. Do not use a five-row list as a substitute for that address-level check.
The uncertainty is a useful finding. It tells a researcher to verify the exact line before a ZIP-filtered records request.
Compton ZIP Delivery Geography
ZIPs route mail. They do not set a city's legal boundary, identify a parcel owner, or produce a resident list. The Assessor Portal uses address and AIN autocomplete. GIS-NET can accept an address with city or ZIP, but the result is address resolution, not a postal-zone household export. The county FBN open-data system is different because it can filter business filings by city and ZIP for the stated coverage period.
- Postal code
- A USPS delivery geography used to route mail and validate an address.
- ZIP+4
- An added delivery segment that narrows a postal route beyond the five-digit ZIP.
- PO-box ZIP
- A postal designation that may serve boxes without mapping to ordinary street parcels.
- Carrier route
- A postal delivery path inside a ZIP, not a municipal or ownership boundary.
Once a ZIP narrows the search, the next step is address-level work. The address record should carry the ZIP, situs, AIN, legal description, and jurisdiction as separate fields.
Verify a Compton ZIP
USPS offers three useful modes. By Address accepts street, apartment or suite, city, state, and optional ZIP. By City and State requires the city and state. Cities by ZIP requires the ZIP. Use the mode that matches the evidence, and save the returned postal city and facility rather than relying on memory.
- Enter the full address with apartment or suite when known.
- Run the city-and-state check if the five-digit ZIP is the uncertain field.
- Compare the USPS result with the Assessor Portal and parcel map.
- Confirm incorporated Compton before directing a city permit or CPRA request.
- Keep any supplemental or PO-box designation marked as unverified for that address.
The USPS city and state ZIP lookup validates delivery information. It does not establish that a name belongs to a household.
Compton ZIP FBN Data
The Los Angeles County fictitious business name system is one of the few local sources in the research with a real ZIP filter. The online name search covers April 2011 onward. Open-data statements cover February 2024 onward and can filter by business name, city, ZIP, and other dataset fields. Results may include filing number, registrant, addresses, filing date, and status.
FBN is a business affiliation source, not a residents directory. AB 878 changed filings effective January 1, 2024 by replacing a registrant's residence address with a business mailing address. A result can connect a person or business to Compton ZIP geography while deliberately withholding a home address.
The Los Angeles County open-data portal supplies the data route referenced in the postal directory.
The open-data view is useful for a dated business search after the ZIP has been confirmed, but it should not be read as a household list.
Note: ZIP-filtered FBN data describes a dated filing, and AB 878 may replace an older residence field with business mailing information.
Compton ZIP Assessor Limits
The Assessor Portal does not return a public ZIP-wide list of residents or owners. Its search begins with AIN or situs address, then offers a parcel card and map. Owner identity is suppressed on the public site. The county's privacy design means a ZIP filter cannot bypass the address-first workflow or the assessor counter and data-sale channels.
GIS-NET can search by address with city or ZIP and can show adjacent polygons, AINs, and map layers. It still does not provide a reliable owner-name export. To build a street list, record each parcel, obtain owner information through the lawful county channel, and research each name separately in the recorder index.
That limit keeps the postal directory from promising more than the source provides. It also makes a precise address and jurisdiction check more valuable than a broad postal label.
Compton ZIP and Parcel Geography
Three fields keep ZIP research clear. Situs is where the parcel sits. Mailing address is where notices go. Legal description is the tract, lot, or block identity recorded in a deed. A ZIP code is a delivery label that may attach to the mailing line, the situs line, or both without proving city jurisdiction.
Compton Public Works Engineering maintains public-works and right-of-way records. Building, Planning, and the City Clerk are the better municipal contacts for assigned addresses, permits, and requests. The research did not verify a published citywide street-renumbering or ZIP-realignment chronology, so an old address should be bridged with intersections, tract and lot, and AIN.
A postal directory search becomes reliable when all four pieces are preserved. If one conflicts, pause and confirm instead of choosing the label that looks most familiar.
Finding Compton Residents by ZIP
Use ZIP geography to narrow a question, then switch to the source that can answer it. For a person, compare a name with a court, license, FBN, or historical entry. For a parcel, use the address and AIN. For a city record, verify incorporation. For a business, use the FBN ZIP filter. A ZIP alone is never enough to claim that a person lives in Compton.
The Compton street directory takes over once a ZIP search produces a confirmed street address. It follows parcels, deeds, permits, and address limits without treating postal geography as a resident roster.
Note: USPS can validate a delivery route, while only the relevant custodian can confirm the status or contents of a public record.