Washington · OZ 2.0 nominations filed October 8, 2026

Opportunity Zones in Mason County, Washington: Map & Tract List

Map and list of Mason County, Washington's Opportunity Zones: 9 census tracts on our Opportunity Zone tables, 7 eligible for OZ 2.0 (7 rural) and 2 fully or partly in a current (OZ 1.0, 2018) zone, with 1 on Washington's published OZ 2.0 nomination list.

2
OZ 1.0 tracts (2018 zones)
7
OZ 2.0 eligible
1
Nominated
1
Funds in Washington

Mason County Opportunity Zone map

NominatedEligible · ruralOZ 1.0 (2018) onlySelect a tract to open its page. The table below is the text version.

Mason County, Washington census tracts

9 tracts in Mason County, Washington. Sorted by status; select any column heading to sort.
9608Nominated53045960800NoYes (rural)
9400Eligible53045940000NoYes (rural)
9601Eligible53045960100NoYes (rural)
9602.01Eligible53045960201NoYes (rural)
9603.01Eligible53045960301NoYes (rural)
9609Eligible53045960900NoYes (rural)
9611.02Eligible53045961102NoYes (rural)
9606OZ 1.053045960600YesNo
9613OZ 1.053045961300YesNo

OZ 1.0: the 2018 CDFI Fund list matched to 2020 tracts (how we match). OZ 2.0 eligibility: IRS Rev. Proc. 2026-14 appendix and Treasury's September 2026 data. Nominated: Washington's published list. Nominated tracts are not Opportunity Zones until Treasury certifies them. Sortable list: Mason County tract list.

Other Washington counties

All Washington counties and OZ 2.0 status →

Mason County, Washington Opportunity Zones: FAQ

How many Opportunity Zones are in Mason County, Washington?

2 of Mason County, Washington's 2020 census tracts are fully (2) or partly in a current Opportunity Zone from the 2018 (OZ 1.0) map, which stays in effect through December 31, 2028. 7 tracts are eligible for OZ 2.0.

Which Mason County tracts are nominated for OZ 2.0?

1 Mason County, Washington tract is on Washington's published nomination list. Nominations take effect January 1, 2027 only after Treasury certifies them, and Treasury has not certified them yet.

How do I check if an address in Mason County is in an Opportunity Zone?

Use the OZ 2.0 likelihood checker or the census tract lookup with the street address. Each tract in the table also links to its own page with its OZ 1.0 status, OZ 2.0 eligibility and nomination status.