This annual study provides selected income and tax items classified by State, ZIP Code, and the size of adjusted gross income. These data include the number of returns, which approximates the number of households; the number of personal exemptions, which approximates the population; adjusted gross income; wages and salaries; dividends before exclusion; and interest received. Data are based who reported on U.S. Individual Income Tax Returns (Forms 1040) filed with the IRS. SOI collects these data as part of its Individual Income Tax Return (Form 1040) Statistics program, Data by Geographic Areas, ZIP Code Data.

A dataset listing the richest zip codes in New York per the most current US Census data, including information on rank and average income.

A dataset listing the richest zip codes in North Carolina per the most current US Census data, including information on rank and average income.

A dataset listing the richest zip codes in Virginia per the most current US Census data, including information on rank and average income.

Wealth Segmentation of U.S. ZIP Codes Based on IRS Data

This dataset provides a wealth-tier classification of U.S. ZIP codes for high income brackets using IRS income data and multivariate KMeans clustering. It can help with regional targeting, CRM enrichment, market analysis, or any data science task that benefits from understanding high income distribution across the U.S.

💡 Source

• IRS SOI ZIP Code Data (open source)
• Aggregated across AGI brackets (stub 3–6)

🧠 What’s Inside

Each row represents a ZIP code with:

• AGI (A00100), Total Income (A00200)
• Capital Gains, Business Income, Tax Paid
• Cluster assignment (0–2)
• Wealth Tier label: Low, Medium, or High

The cluster assignments are refined using distance to cluster centroids in normalized feature space to improve accuracy.

💼 Use Cases

• Segmenting markets for B2B/B2C outreach
• CRM lead enrichment
• Territory planning and resource allocation
• Visualization and dashboard overlays

📬 Contact

Created by Namrata Nyamagoudar(LinkedIn) for open-source analysis and enrichment use cases.

The median house price in *****, Atherton, California, was about *** million U.S. dollars. This made it the most expensive zip code in the United States in 2023. ***** Sagaponack, N.Y., was the runner-up with a median house price of about *** million U.S. dollars. Of the ** most expensive zip codes in the United States in 2026, six were in California.

This dataset contains data from California resident tax returns filed with California adjusted gross income and self-assessed tax listed by zip code. This dataset contains data for taxable years 1992 to the most recent tax year available.

A dataset listing the richest zip codes in Rhode Island per the most current US Census data, including information on rank and average income.

A dataset listing the richest zip codes in Mississippi per the most current US Census data, including information on rank and average income.

.Table NameZIP Code Business Statistics: Total for Zip Code: 2012 .Release ScheduleThe data in this file were released on June 26, 2014..Key Table InformationBeginning with reference year 2007, ZBP data are released using the Noise disclosure methodology to protect confidentiality. See Survey Methodologyfor complete information on the coverage and methodology of the ZIP Code Business Patterns data series. .UniverseThe universe of this file is all operating establishments with one or more paid employees. This universe includes most establishments classified in the North American Industry Classification System (NAICS) Codes 11 through 813990. For specific exclusions and inclusions, see Industry Classification of Establishments. .Geography CoverageThe data are shown at the 5-digit ZIP Code level only. .Industry CoverageThe data are shown for NAICS code 00 (Total for all sectors) only. .Data Items and Other Identifying RecordsThis file contains data on the number of establishments, total employment, first quarter payroll and annual payroll. .Sort OrderData are presented in ascending ZIP Code sequence. .FTP DownloadDownload the entire table at https://www2.census.gov/econ2012/CB/sector00/CB1200CZ11.zip. .Contact InformationU.S. Census Bureau Economy-Wide Statistics Division Enterprise Statistics Branch Tel: (301)763-2580 Email: ewdd.county.business.patterns@census.gov ..Data User Notice posted on March 24, 2016: Census Bureau staff identified processing errors that affect selected data from the 2012 and 2013 ZIP Code Business Patterns (ZBP). As a result, we revised noise flags and employment range flags for selected ZIP codes and 2012 and 2013 employment and payroll totals for ZIP codes 02467 and 87106..Data User Notice posted on May 19, 2016: Industry Coverage for 2012 and 2013 ZIP Code Business Patterns by Employment Size Class has been updated to include 2- through 6- digit NAICS code levels for all sectors with published data. .NOTE: Data based on the 2012 Zip Business Patterns. For information on confidentiality protection, nonsampling error, and definitions, see Survey Methodology..Source: U.S. Census Bureau, 2012 ZIP Code Business Patterns.

Table NameZIP Code Business Statistics: Total for Zip Code: 2014 Release ScheduleThe data in this file were released on May 19, 2016. Key Table InformationBeginning with reference year 2007, ZBP data are released using the Noise disclosure methodology to protect confidentiality. See Survey Methodologyfor complete information on the coverage and methodology of the ZIP Code Business Patterns data series. UniverseThe universe of this file is all operating establishments with one or more paid employees. This universe includes most establishments classified in the North American Industry Classification System (NAICS) Codes 11 through 813990. For specific exclusions and inclusions, see Industry Classification of Establishments. Geography CoverageThe data are shown at the 5-digit ZIP Code level only. Industry CoverageThe data are shown for NAICS code 00 (Total for all sectors) only. Data Items and Other Identifying RecordsThis file contains data on the number of establishments, total employment, first quarter payroll and annual payroll. Sort OrderData are presented in ascending ZIP Code sequence. FTP DownloadDownload the entire table at https://www2.census.gov/econ2014/CB/sector00/CB1400CZ11.zip. Contact InformationU.S. Census Bureau Economy-Wide Statistics Division Enterprise Statistics Branch Tel: (301)763-2580 Email: ewd.county.business.patterns@census.gov .Data User Notice posted on July 21, 2016: Census Bureau staff identified a processing error that affects selected data from the 2014 ZIP Code Business Patterns (ZBP). As a result, we suppressed 2014 employment and payroll totals in the Health Care and Social Assistance sector (Sector 62) for the ZIP code 49015. This processing error did not affect other ZIP codes. While suppressed values can be derived by subtraction, we do not recommend using the derived values in any analyses. The Census Bureau plans to release revised statistics at a later date..NOTE: Data based on the 2014 Zip Business Patterns. For information on confidentiality protection, nonsampling error, and definitions, see Survey Methodology..Source: U.S. Census Bureau, 2014 ZIP Code Business Patterns.

A dataset listing the richest zip codes in North Dakota per the most current US Census data, including information on rank and average income.

In 2019, the most expensive zip code in Washington DC was *****, and renters paid on average ***** U.S. dollars per month for apartments there.