PlainZIP

Directory

Full entry-point directory for the PlainZIP dataset. Every link here lands on a browsable listing of the underlying records.

Download the state-level summary (CSV) , open extract wired into this page's Dataset JSON-LD.

State Directory
All 50 U.S. states plus D.C. and Puerto Rico with ZIP-level aggregates.
City Directory (A-Z)
Alphabetical directory of every city with Census ZIP coverage.
County Directory
Every county in the dataset with ZIP-count, population, and income totals.
Time Zone Directory
Every IANA time zone appearing in U.S. ZIP code records.
Ranked Lists
Wealthiest, most-populated, and highest-education ZIPs.
City Dashboard Directory
Affordability dashboards for major U.S. cities.

Cities by First Letter

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Directory Methodology

The directory lists every entry-point available in the PlainZIP dataset. Every listing is generated from the same underlying ZIP-level fact table, no separate directory metadata, no editorial curation. If a record appears in the database, it appears in the matching directory view; if it doesn't, it doesn't.

City, county, state, and time-zone rollups are derived aggregations, the totals you see on any directory page come from grouping the raw ZIP records, not from separately published summaries. This keeps numbers internally consistent.

For the full data-sources list and data-update process, see the full methodology page.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2019–2023 claims window). Source: HUD USPS Crosswalk. Source: simplemaps.com ZIP database.

This page explains the source records, calculation, and limits behind the figures shown. Directory pages are noindex entry maps into the ZCTA fact table. Listings are generated from live SQL, not curated catalogs. Read our editorial standards and corrections policy, the methodology behind these numbers, or report a correction. Data current as of the ACS 2019–2023 claims window.