Historic Zoning Districts for the City of New Orleans. This data is archived to show the status of zoning for parcels previous to changes made in August of 2012. Zoning regulates land use to promote smart growth and preserve the quality of life in communities. Permitted Use are allowed by right, subject to compliance with appropriate standards. Conditional Use require City Planning Commission review with a recommendation forwarded to the City Council for final action.

In 1980 the New Orleans City Planning Commission, for planning and decision-making purposes, divided the city into Census Tract based 'neighborhoods'. Additional neighborhoods were created after the 1990 and 2000 Censuses. Following Hurricane Katrina the Greater New Orleans Community Data Center (GNOCDC) settled on these boundaries to facilitate the use of local data in decision-making. These neighborhoods underwent further change during the 2010 Census due to modifications (consolidation and/or splitting) of Census Tracts. The resulting boundaries were renamed as 'Neighborhood Statistical Areas' to reflect their actual function. Census Tracts are small, relatively permanent statistical subdivisions of a county or statistically equivalent entity delineated by local participants as part of the U.S. Census Bureau's Participant Statistical Areas Program. The primary purpose of Census Tracts is to provide a stable set of geographic units for the presentation of decennial census data.

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Adminstrative districts as used by the Iowa DNR Conservation and Recreation Bureau.

Land conservation district committees (LCDCs) are statutory committees appointed by the Commissioner of Soil and Land Conservation to administer Land Conservation Districts in accordance with an Order proclaimed by the Governor. Their main function is to promote sustainable land management and undertake projects. LCDCs may be active, abolished or in-recess. The associated spreadsheet indicates the status of each district.