School Districts of Minnesota, 1990

This page last updated: 04/11/2007
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator U.S. Census Bureau/ State of Minnesota Legislative Coordinating Commission/GIS Office
Abstract This file represents the boundaries of all public school districts in the State of Minnesota, 1990. Delineation was done by the Land Management Information Center, based on maps provided by the County Assessor's Offices. Automation was done by the U.S. Census Bureau. School District Boundaries were, to the extent possible, the Census Bureau's 1990 TIGER file linework for counties, minor civil divisions, census tracts, and census blocks. Complete automated files were made available to LMIC and the state's Legislative GIS Office for use and distribution.
Browse Graphic View a sample of the data.
Time Period of Content Date 1990
Currentness Reference Reflects all school district boundaries obtained from County Assessors' offices as of 1990.
Access Constraints None
Use Constraints Redistribution conditions: In obtaining this data from LMIC, it is understood that individuals or organizations have the right to use it for any internal purpose. If data is modified, changes should be documented in a metadata record that should accompany all redistributed data. If data is transmitted or provided in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set, including the full metadata record.
Distributor Organization Minnesota Land Management Information Center (LMIC)
Ordering Instructions This data set is distributed on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a self-extracting 'ZIP' file which will contain the following:

- Arc Export file (.e00) of coverage
- ArcView Shapefile of layer
- Metadata (.htm) file for the dataset
- NOTICE.RTF, an important notice about this data set that can be read
by most word processing software, and an ascii text version of the same notice (NOTICE.TXT)

After downloading this self-extracting 'zip' file (which will have an 'exe'
extension), simply execute (run) the file. (For example, you can double
click it from Windows Explorer or File Manager). Doing this will automatically extract the files described above.
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata.

Full Metadata

School Districts of Minnesota, 1990

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information

 
Section 1 Identification Information   Top of page
Originator U.S. Census Bureau/ State of Minnesota Legislative Coordinating Commission/GIS Office
Title School Districts of Minnesota, 1990
Abstract This file represents the boundaries of all public school districts in the State of Minnesota, 1990. Delineation was done by the Land Management Information Center, based on maps provided by the County Assessor's Offices. Automation was done by the U.S. Census Bureau. School District Boundaries were, to the extent possible, the Census Bureau's 1990 TIGER file linework for counties, minor civil divisions, census tracts, and census blocks. Complete automated files were made available to LMIC and the state's Legislative GIS Office for use and distribution.
Purpose The purpose of the original project was to create a nationwide school district boundary file and population totals that matched 1990 Census boundaries.
Time Period of Content Date 1990
Currentness Reference Reflects all school district boundaries obtained from County Assessors' offices as of 1990.
Progress Complete
Maintenance and Update Frequency Annually
Spatial Extent of Data Minnesota, Statewide
Bounding Coordinates -97.5
-89.0
49.5
43.0
Place Keywords Minnesota, Statewide
Theme Keywords boundaries, schools, school districts, school district boundaries, education
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints None
Use Constraints Redistribution conditions: In obtaining this data from LMIC, it is understood that individuals or organizations have the right to use it for any internal purpose. If data is modified, changes should be documented in a metadata record that should accompany all redistributed data. If data is transmitted or provided in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set, including the full metadata record.
Contact Person Information Lee Meilleur,
Legislative Coordinating Commission, Geographic Information Systems Office
Room 85, State Office Building, 100 Constitution Avenue
St. Paul, Minnesota 55155
Phone: 651-296-0098
FAX: 651-297-3697
E-mail: lee.meilleur@commissions.leg.state.mn.us
Browse Graphic View a sample of the data.
Browse Graphic File Description
Associated Data Sets School District files are available for downloading from the Legislative GIS Office for subsequent years, including 1997, 1998, 1999, and 2001.

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy
Logical Consistency
Completeness All school districts in Minnesota are represented on the file.
Horizontal Positional Accuracy See notes on potential boundary inaccuracies under 'Lineage'
Lineage The original School District file delineation work was done at LMIC on contract to the U.S. Census Bureau, which was actually under contract to the U.S. Department of Education to create a nationwide school district file and population totals that matched the Census boundaries. LMIC provided delineations of the school district boundaries to the Census Bureau, based on map information provided by the County Assessors' Offices to LMIC. The steps used to create the file were as follows:

1. Delineation of school district boundaries (LMIC):

LMIC's role was to delineate school district boundaries to match Census county, mcd, tract, and block boundaries. LMIC received a set of large-scale (approx 1:800) maps of census boundaries from the Census Department. These census boundary maps included mcd, tract, and block boundaries.

LMIC obtained school district boundary maps from the County Assessor's office in each county. LMIC sent blank County Highway Maps to each County Assessor, and received back those maps with the school districts delineated on them. The Assessor's Offices drew the boundaries according to their official records. LMIC still has these maps on file.

Using the County Assessors' delineation maps, LMIC transferred the school district boundaries onto the 1:800 Census maps. Census had very specific guidelines, which they enforced. Delineations were to match to within 1/16 of an inch - basically, a fine pencil-width.

2. Automation of School District Boundary Linework Census Bureau):

The Census Bureau did the automation of the maps to create the digital file. This was done in two steps:

a. Wherever the linework matched the Census tract, block, mcd, etc., boundaries, exactly, the census units were assigned a school district code via a lookup table.

b. Where the school district boundaries did NOT follow the Census boundaries, then the Census Bureau digitized the necessary linework.
These base maps used in the automation eventually came back to the state, and are stored in the State Demographer's Office files.

3. Population totals (LMIC)

Where the school district boundaries did not match the Census boundaries, LMIC also provided population figures to apportion the Census unit population into the school districts. Rather than apportioning population strictly on the basis of area, this was done through examination of other maps; sometimes, as in the metro area, by counting the houses on aerial photos. The demographic distribution by school district was important as a basis for funding.

4 File distribution (Census Bureau):

In 1992, the automated 1990 School District Boundary files were delivered by the Census Bureau to the Legislative GIS Office (LGO) in TIGER/line format. LGO extracted the data from TIGER format and created an arc coverage, which was then provided to LMIC and other agencies. LMIC did not receive the digital files back from the Census Bureau for any type of review or verification.

Errors in the school district boundary file were reported to the Legislative GIS Office and the Secretary of State's Office. These errors were corrected on the final file. Many of the errors relate to the Census boundary alignment problem - i.e., school district boundary lines were moved to coincide with the appropriate Census boundary.

NOTES ON MISMATCHES OF DATA OR DATA ERRORS:

1. The County Assessor's office is required to delineate school district boundaries by law, and maintains the official record for tax purposes. It must be noted that the school districts also have boundary maps, and that, while the two sets of map boundaries should match, they do not always do so. In cases where the school district and the county assessor records show different boundaries, this should be resolved locally. It becomes an issue for the maintainers of statewide files when updates are obtained from both sources.

2. Mismatches between the Census Boundary lines and the School District lines: although the school district boundary file generally matches Census lines, it does not always do so. Therefore, mismatches can be legitimate, based upon the original maps from the County Assessor's Offices, and can be verified against the maps on file at LMIC and the Demographer's Office.
Source Scale Denominator 100000
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Arc/Info 7.2
Geographic Reference for Tabular Data
Spatial Object Type Vector
Vendor Specific Object Types Polygon
Tiling Scheme None. State file
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid GRS80
Horizontal Datum NAD83
Horizontal Units Meters
Distance Resolution
UTM Zone Number 15E
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview The file contains school district boundary and name..
Entity and Attribute Detailed Citation The file, SD90.PAT, contains the following data fields:

AREA = Area of polygon (internal variable)
PERIMETER = Perimeter of polygon (internal variable)
SD90# = Internal variable - system-assigned ID number
SD90-ID= Internal variable - may be user-assigned
SD90_NUMBER = School district number (4I)
NAME_LOWER_SD= School district name (40C)
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Bureau of the Census/ State of Minnesota Legislative Coordinating Commission, Geographic Information Systems Office
Publication Date 1992
Contact Person Information Nancy Rader
GIS Data Coordinator
Minnesota Land Management Information Center (LMIC)
Room 300, Centennial Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier sd90
Distribution Liability DISTRIBUTION LIABILITY STATEMENT
For data or maps delivered online or by physical media by
the Land Management Information Center

Limitations: Although extensive effort has been made to produce error-free and complete data, all geographic information has limitations due to the scale, resolution, date and interpretation of the original source materials. Users should consult available data documentation (metadata) for this particular data to determine limitations and the precision to which the data depict distance, direction, location or other geographic characteristics. Data may be subject to change without prior notification.

No warranty: Data is provided as is, without any warranty whatsoever, including but not limited to any warranty as to performance, merchantability, or fitness for any particular purpose.

Liability: The entire risk as to the results of the use of this data is assumed by the user. LMIC is not responsible for any interpretation or conclusions made by those who acquire or use it. LMIC shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third-party claims resulting from the use of this data, even if LMIC has been advised of the possibility of such potential loss or damage. In states that do not allow the exclusion or limitation of incidental or consequential damages, this data may not be used.

Data delivered on electronic media: If data has been requested from LMIC on magnetic media, CD or any other physical media, LMIC will deliver it in the computer-readable format agreed upon with the requestor. LMIC will re-issue data if it is unreadable by correctly adjusted computer input devices or when the media is delivered in a damaged condition. Requests for re-issue of this digital data product must be made within 30 days of the date shipped from LMIC.
Transfer Format Name Arc Export or Shapefile
Transfer Format Version Number Arc/Info 7.2; ArcView 3.0
Transfer Size 5.7 MB as arc export file (uncompressed); 1.8 MB as self-extracting zip (.exe) file
Ordering Instructions This data set is distributed on the internet by clicking below after Online Linkage. Doing so will tell your browser to start downloading a self-extracting 'ZIP' file which will contain the following:

- Arc Export file (.e00) of coverage
- ArcView Shapefile of layer
- Metadata (.htm) file for the dataset
- NOTICE.RTF, an important notice about this data set that can be read
by most word processing software, and an ascii text version of the same notice (NOTICE.TXT)

After downloading this self-extracting 'zip' file (which will have an 'exe'
extension), simply execute (run) the file. (For example, you can double
click it from Windows Explorer or File Manager). Doing this will automatically extract the files described above.
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
 
Section 7 Metadata Reference Information Top of full metadata Top of page
Metadata Date 04/11/2007
Contact Person Information Susanne Maeder, GIS Data Coordinator
Minnesota Land Management Information Center (LMIC)
Room 300, Centennial Office Building; 658 Cedar Street
St. Paul, Minnesota 55155
Phone: 651-201-2488
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.lmic.state.mn.us/gc/stds/metadata.htm


This page last updated: 04/11/2007