How to Look Up a Census Tract's Opportunity Zone Status
Opportunity Zones are designated tract by tract. The census tract, not the ZIP code or the city, decides whether a property is in a zone. If you already have a tract number from a title report, appraisal or offering memo, you can check it directly.
The free census tract lookup by GEOID or tract number shows a tract's county, OZ 2.0 eligibility, rural flag, whether it is in a current (2018) Opportunity Zone and, where the state has published one, its OZ 2.0 nomination status.
How GEOIDs work
A 2020 census tract GEOID is 11 digits: state (2), county (3) and tract (6). The six-digit tract code is the tract number without the decimal point, padded with zeros. Tract 34.03 becomes 003403, and tract 9501 becomes 950100.
What a census tract is
Census tracts are the statistical areas the Census Bureau uses to publish data. They generally have 1,200 to 8,000 people and nest inside counties.
What the result means
OZ 2.0 eligible
The tract is on the IRS list of tracts a governor can nominate for the zones starting January 1, 2027. Eligible does not mean certified.
Rural
The tract is made up entirely of a rural area. Rural zones get a 30% step-up for a qualified rural opportunity fund and a 50% substantial improvement threshold.
Current (2018) Opportunity Zone
The tract overlaps a zone on the CDFI Fund's designated list.
Nomination status
Shown where the state has published its list.
Step by step: looking up a tract
- Find the tract. It often appears on appraisals, offering memos, Census data, or the HUD and FFIEC tools lenders use.
- Open the census tract lookup for Opportunity Zone status.
- Enter the 11-digit GEOID, or the tract number with county and state.
- Read the county, OZ 2.0 eligibility, rural flag, current zone status and nomination status.
- If you only have a street address, use the address search on the OZ map instead.
Hypothetical example: checking a sponsor's claim
Hypothetical example, for illustration only. An offering memo for a condo-hotel project says the site is "in a rural Opportunity Zone." The memo lists a tract number. An investor enters it with the county and state. The lookup shows the tract is OZ 2.0 eligible but not flagged rural, and the state has not published its list. That is a good question to take back to the sponsor, because the rural flag affects both the 30% step-up and the substantial improvement threshold.
Converting tract numbers
The page explains the format: the six-digit tract code is the tract number without the decimal, padded with zeros. Tract 34.03 is 003403; tract 9501 is 950100. Put the two-digit state code and three-digit county code in front to get the 11-digit GEOID.
Who uses it
Investors vetting deals, appraisers, lenders, developers and agents who need a sourced tract-level answer.
Common mistakes
- Using a 2010 tract number. Current zones were drawn on 2010 tracts; the OZ 2.0 list uses 2020 tracts. The lookup shows both statuses.
- Dropping leading zeros in a GEOID.
- Reading eligible as designated.
- Assuming the rural flag from how an area looks. Use the IRS appendix flag the tool shows.
Questions to bring to your CPA or adviser
The tool gives you a starting point. Before you act, these are worth asking:
- Is this the 2020 tract number or an older 2010 number?
- Is the tract on the IRS OZ 2.0 eligible list, and is it flagged rural?
- Has the state published its nominations, and is this tract on the list?
- Is the property also in a current (2018) zone, and what is the plan if the project spans the change?
- Does the sponsor's offering memo match the lookup result?
- Who on the deal team is responsible for confirming tract status before closing?
Where this fits for luxury sellers and buyers
Offering memos for development deals often cite a tract number. Before you rely on a sponsor's claim that a project is in an Opportunity Zone, check the tract yourself. If you only have a street address, use the Opportunity Zone map search instead.
More free Opportunity Zone tools
This is one of several free planning tools in the Opportunity Zone tools library on Opportunity Zone Invest. For a full state or county list, see the Opportunity Zone census tract lists.
FAQ
Can I search by address?
This tool takes a GEOID or tract number. For a street address, use the OZ map search.
Does eligible mean it is an Opportunity Zone?
No. A state nominates only part of its eligible tracts, and Treasury certifies them.
How big is a census tract?
Generally 1,200 to 8,000 people, per the Census Bureau, nesting inside counties.
Where does eligibility data come from?
The IRS Rev. Proc. 2026-14 appendix; current zones come from the CDFI Fund list.
Does every tract have its own page?
Yes, the page says each tract in its data has a page under its state.
Not tax advice. Tool outputs are estimates based on the figures you enter and current published rules. Investors get Opportunity Zone tax benefits only by investing through a Qualified Opportunity Fund. Talk to a CPA or tax attorney before you act.