Digitized polygons of HOLC maps showing graded neighborhoods

This page last updated: 09/20/2021
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1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator Digital Scholarship Lab, University of Richmond
Title Digitized polygons of HOLC maps showing graded neighborhoods
Abstract This dataset shows neighborhood real-estate investment security Grades determined by the Home Owners' Loan Corporation. In 1935, the Home Owners' Loan Corporation created maps for 239 cities to indicate the level of security for real-estate investments. Areas were graded "Type A", most desirable for mortgage lending, to "Type D", least desirable, based on data which included housing quality, sale and rent history, and racial and ethnic identity of the area. These grades contributed to redlining, making it difficult for people in certain areas to access financing and become homeowners. These practices led to inequalities that can be seen today.
Purpose
Time Period of Content Date
Currentness Reference
Progress
Maintenance and Update Frequency
Spatial Extent of Data
Bounding Coordinates -93.340756
-91.990602
46.857304
44.002389
Place Keywords
Theme Keywords Graded Neighborhoods, HOLC (Home Owners' Loan Corporation), Digitized Polygons, society, economy, housing, property
Theme Keyword Thesaurus
Access Constraints None
Use Constraints None
Contact Person Information ,


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Browse Graphic None available
Associated Data Sets

Section 2 Data Quality
Attribute Accuracy
Logical Consistency
Completeness
Horizontal Positional Accuracy
Lineage

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme Universal Transverse Mercator
UTM Zone Number 15
Horizontal Datum NAD83
Horizontal Units meters

Section 5 Attributes
Overview
Detailed Citation
Table Detail:
hold_ac_data_mn
Field NameValid ValuesDefinitionDefinition Source
FID
-
Internal feature number.Esri
Shape
-
Feature geometry.Esri
state
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city
-
name
-
holc_id
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Number associated with the grade given to a neighborhood from the cities HOLC Map.
holc_grade
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Letter grade given to a neighborhood from the cities HOLC Map.
neighborho
-
area_descr
-


Section 6 Distribution
Publisher
Publication Date
Contact Person Information ,


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Distributor's Data Set Identifier
Distribution Liability
Ordering Instructions Justin Madron
GIS Analyst
Digital Scholarship Lab, University of Richmond
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 09/20/2021
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Metadata Standard Name
Metadata Standard Version
Metadata Standard Online Linkage


This page last updated: 09/20/2021
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