MCDC News and Updates

More Geographies Added to Geocorr 2022

New in the Geocorr 2022 application this month:

We’ve added current American Indian / Alaska Native / Native Hawaiian areas. These areas include American Indian reservations (state and federal), off-reservation trust lands, Hawaiian home lands (HHLs), joint-use areas, Oklahoma tribal statistical areas (OTSAs), Alaska native village statistical areas (ANVSAs), state designated tribal statistical areas (SDTSAs), and tribal designated statistical areas (TDSAs). Alaska Native Regional Corporations [ANRCs] and tribal subdivisions are not included in MABLE/Geocorr.

The Bureau released block equivalency files for 118th congressional districts and 2022 state legislative districts this month — two months early! — so we’ve replaced the “provisional” CD/SLDs with these new “official” ones.

The next major addition to Geocorr will be the new urban/rural classifications, expected December 2022 or January 2023. There are significant changes to the urban/rural classifications for the 2020 Census — we’ll post more about that later, but if you’re interested, the Bureau’s Urban and Rural page has more detail.

Please report any errors to Glenn Rice (