Opportunity Zone lookup: is this address in a zone?

As of October 30, 2026, this lookup answers two questions for one address: is it inside a 2018 Opportunity Zone, and where does its census tract stand in the 2027 designation round. The answers can differ, because the two maps are drawn on different census tracts.

How this lookup works

1. Geocode the address twice. The address goes to the U.S. Census Bureau Geocoder, once for its 2010 census tract and once for its 2020 census tract. The Census Bureau returns the matched address and an 11-digit tract number (GEOID) for each.
2. Check the 2018 map. The 2010 tract is matched against the 8,764 zones designated under the 2017 law, listed in IRS Notice 2018-48 as amplified by Notice 2019-42.
3. Check the 2027 round. The 2020 tract is matched against the 25,461 tracts on Treasury's September 2026 eligible list (the April Rev. Proc. 2026-14 appendix listed 25,332; the September file added 129 and removed none), and then against the nomination and certification records in our sources file.
4. Add tract statistics. Where available, the result shows the Census American Community Survey poverty rate and median family income for the 2020 tract, with the survey vintage printed beside them.

The page link updates with the address (?address=), so a result can be shared or bookmarked. The same lookup is available to software and AI agents through the Opportunity Zone API, which also accepts latitude and longitude.

Why one address has two tract numbers

The 2018 zones use 2010 census tract boundaries. New zones use 2020 boundaries, and those boundaries stay fixed through the 2027–2036 designation period. Tract numbers that look the same across the two censuses do not always cover the same land.

A tract that overlaps a 2018 zone is eligible for the new map only if it meets the new low-income test on its own. Being a 2018 zone carries no credit into the 2027 round.

What eligible, nominated and certified mean

• Eligible. The 2020 tract is on Treasury's list in Rev. Proc. 2026-14. This is not a designation. A state may designate no more than 25 percent of its eligible tracts in a designation period.
• Nominated. The state's governor nominated the tract. The latest nomination deadline, with the extension, was October 28, 2026.
• Certified. Treasury certified the nomination, so the tract becomes an Opportunity Zone on January 1, 2027. The tool shows this status only where an official list names the tract. As of October 30, 2026, Treasury and the IRS had not published a national list of certified 2027 zones; they expect to publish one before January 1, 2027. Some states have published their own results: California's GO-Biz reports 620 certified tracts, and Nebraska's governor announced that Treasury approved all 28 of its nominated tracts.
• Not eligible. The 2020 tract is not on Treasury's published eligible list. A governor could nominate an unlisted tract with a detailed tract-level analysis, so this answer reflects the published list, not every possible nomination.

The headline answer reads "Yes" when the address is in a 2018 zone or in a certified 2027 zone. When the address is outside the 2018 map but its tract is eligible, the headline says so. The "2027 status source" line names the list behind the status.

Rural flags

A "Rural" pill appears when either map flags the tract as entirely rural.

• 2018 zones. Notice 2025-50 identified 3,309 of the 2018 zones as entirely rural, using 2020 census data. Since July 4, 2025, property in those zones needs only a 50 percent basis addition to be substantially improved.
• 2027 round. Rev. Proc. 2026-14 marks 8,334 of the eligible tracts as lying entirely in rural areas. For amounts invested after December 31, 2026, a Qualified Rural Opportunity Fund, one holding at least 90 percent of its assets in rural-zone property, earns a 30 percent basis step-up at 5 years instead of 10 percent.

The statute defines a rural area as any area other than a city or town with more than 50,000 people and any urbanized area contiguous and adjacent to such a city or town.

Reading a result

Data sources and dates

• Geocoding: the Census Bureau Geocoder, current address benchmark, 2010 and 2020 tract vintages.
• 2018 zones: Notice 2018-48 and Notice 2019-42; rural flags from Notice 2025-50.
• 2027 eligibility and rural flags: the Rev. Proc. 2026-14 appendix. Eligibility was based on 2020–2024 American Community Survey data.
• 2027 nominations and certifications: official state or Treasury releases, each dated in our sources file.

Every result prints the date of the designation data it used. Downloads of the full tables are on the data page.

Limits and assumptions

• The geocoder places an address at a single point. A large parcel can cross a tract line, and new or rural addresses sometimes match poorly or not at all.
• Statuses for the 2027 round are changing through the end of 2026. A result is only as current as the date it prints.
• The ACS statistics are survey estimates with margins of error, shown for context. The tool does not recompute eligibility from them; it reads Treasury's list.
• The CDFI Fund says it does not confirm whether a particular investment is in an Opportunity Zone. Confirm against the official list before investing, and ask a tax adviser whether a property qualifies.