Johnson County GIS Online - Internal Site
An Internet Mapping Application
of the Johnson County, Iowa GIS
Layers
NOTE: Click on the layer name to get a description
of the attributes contained within the layer.
LABEL LAYER: Descriptions containing Label Layer
signifies that that layer is used to display specific labels for another
layer. This gives the user the option to turn labels on or off based
on the current situation.
| LAYER |
DESCRIPTION |
| Townships |
Public Land Survey Townships |
| Sections |
Public Land Survey Sections |
| Public Land Survey |
Complete PLS with Quarter Sections and Quarter-Quarter Sections |
| Voting Precincts |
Voting precincts |
| School Districts |
School district boundaries |
| TIF District |
Tax Increment Finance districts |
| Political Boundaries |
|
| Subdivisions |
Subdivision name (if parcel is within a subdivision) |
| Subdivision Poly TEMP |
Temporary Subdivision |
| Centerlines |
Highways, roads, streets and railroads for Johnson County |
| Centerline Labels |
LABEL LAYER: Labels for Centerline layers. Allows
you to turn lables on or off while still displaying the centerlines |
| Parcel Nodes |
Points along the parcel boundary where lines end and begin |
| Parcel Lines |
Lines that represent property boundaries, historical lot lines
and road right-of-way. |
| County Boundary |
Johnson County, Iowa Boundary |
| Farmstead Splits |
These data show individual subdivision lots that were separated
from the parent farm parcel. |
| Zoning |
Data that depicts the areas that have changed zoning classifications
since the County adopted zoning guidelines in 1960. |
| Historical Zoning |
Areas that have had multiple zoning changes, or, were zoned in
the County and then subsequently annexed into the various cities.
|
| Fringe Areas |
Fringe Area Agreements |
| Ortho Index |
|
| 2006 Orthos |
Full color orthophotography that was collected on April 10th, 2006 |
| 2003 Orthos |
Black & white orthophotography that was collected in 2003 |
| 2001 Orthos (Iowa City and Coralville Only) |
Orthophotography that was collected in the spring of 2001. The
extent of these orthos is limited to Iowa City and Coralville. |
| 2003 Orthos |
Orthophotography that was collected in the spring of 2003. |
| Parcel TEMP Deed Holders |
LABEL LAYER: The first deed holder name listed
for each parcel in the county. Users can toggle this on and off.
Not visible by default. |
| Parcel TEMP PPNs |
LABEL LAYER: The 10 digit parcel number. Not
visibile by default. |
| Parcel TEMP House Numbers |
LABEL LAYER: The house number contained within
the address for each parcel. |
| Parcel TEMP Polygons |
Parcels that are currently under development and have not been
added to the Parcels layer. |
| Parcel Deed Holders |
LABEL LAYER: The first deed holder name listed
for each parcel in the county. Users can toggle this on and off.
Not visible by default
|
| Parcel PPNs |
LABEL LAYER: The 10 digit parcel number. Not
visibile by default. |
| Parcel House Numbers |
LABEL LAYER: The house number contained within
the address for each parcel. |
| Parcel Polygons |
Parcels for Johnson County. This layer contains the Real Estate
data for each parcel in addition to the shape of the property. Buildings
on leased land, cell towers, water bodies, and condominiums have
been fully integrated into this layer. (See the “Help with
Parcels” section for additional help using this data. |
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Townships:
Public Land Survey townships. There are 18 survey townships within Johnson
County. The first 2 digits in a parcel number represent the survey township
the parcel falls within.
| ATTRIBUTE |
DESCRIPTION |
| Township Number |
2 digit survey township number used as the first 2 numbers in
PPN (Range: 01 to 18) |
| Township |
Original Public Land Survey Township number (Range: 77 to 81)
|
| Range |
Original Public Land Survey Range number (Range: 5 to 8) |
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Sections:
There are 36 sections a typical survey township. Numbering
starts in the northeast part of the township and winds its way west
and east towards the southeast corner.
| ATTRIBUTE |
DESCRIPTIONS |
Township
|
Public Land Survey township number. (Range”:77 to 81) |
| Range |
Public Land Survey range number. (Range: 05 to 08) |
| Section |
Public Land Survey section number (Range: 01 to 36) |
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Public Land Survey:
Public Land Survey contains both survey township and sections in addition
to quarter sections and quarter-quarter sections. Each section is divided
into 4 sections referred to as quarter sections. Each quarter section
is divided into quarter/quarter sections.
| ATTRIBUTE |
DESCRIPTIONS |
Township
|
Original Public Land Survey Township number (Range: 77 to 81) |
| Range |
Original Public Land Survey Range number (Range: 5 to 8) |
| Section |
Original Public Land Survey Section number (Range: 1 to 36) |
Quarter
Quarter |
Directional representation of the quarter/quarter section
NE = Northeast
NW = Northwest
SW = Southwest
SE = Southeast |
| Quarter |
Directional representation of the quarter section
NE = Northeast
NW = Northwest
SW = Southwest
SE = Southeast |
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Voting Precincts:
| ATTRIBUTE |
DESCRIPTION |
Name
|
Precinct name |
| Senate District |
Iowa senate district |
| House District |
Iowa house district |
| Iowa City Council District |
Iowa City council district |
| Polling Site |
Building Used as Polling Place |
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School Districts:
School districts in Johnson County.
| ATTRIBUTE |
DESCRIPTION |
| Name |
School district name |
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TIF Districts: (Tax
Increment Finance Districts)
Districts where most of the taxes collected on valuations above
a base amount (set for a base year) may be used to pay off debt for
urban renewal or jobs training projects.
| ATTRIBUTE |
DESCRIPTION |
| TIF |
Name of TIF |
| Base Year |
Valuation year used to establish frozen base valuations |
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Political Boundaries:
Layer represent incorporated areas in addition to all political township
boundaries.
| ATTRIBUTE |
DESCRIPTION |
| Name |
Name of either city/town or political township |
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Subdivisions and Subdivision TEMP:
Layer storing subdivisions.
| ATTRIBUTE |
DESCRIPTION |
| Name |
Full name of subdivision |
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Centerlines:
The Centerline layer contains lines that represent streets, roads, highways
and railroads within Johnson County.
| ATTRIBUTE |
DESCRIPTION |
| Street Name |
Name associated with line segment. |
| Street Type |
Street type associated with line segment. |
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Parcel Lines:
Lines that are used to construct the Parcels layer. Parcel Lines are
maintained in addition to parcel polygons so that lines can be symbolized
based on their type.
| ATTRIBUTE |
DESCRIPTION |
| Type |
Numeric code for the type of parcel line:
9 = Parcel Lot Line
10 = Parcel Line
11 = Right of Way
50 = Historical Lot Line |
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Farmstead Splits:
Subdivision data are fairly recent since the adoption of the Farmstead
Split Ammendment to the Johsnon County Zoning Ordinance in December
of 2000. These data show individual subdivision lots that were separated
from the parent farm parcel. The new ordinance allows only one division
of the parent farm parcel into a lot of less than 40 acres; for this
reason, it is important for the County to track the original parent
farm parcel- this prevents farms from being subdivided more than once
as the ordinance allows.
| ATTRIBUTE |
DESCRIPTION |
| Class |
This is the Zoning District type, for a farmstead split it should
be A1/ Agriculture |
| Subdivision Number |
Is the number assigned to the subdivision application filed with
the Planning and Zoning Office. |
| Acres |
The total number of acres that the applicant applied for; includes
road Right-of-Way. |
| Sub or Parent |
Indicates whether the shape is the subdivision itself (SUB); or,
the parent farm parcel from which the subdivision was split. In
order to qualify for a farmstead split subdivision, the applicant
must have a minimum of 40 acres (a farm) remaining- following the
subdivision. |
| Name |
The name of the subdivision. |
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Zoning:
Data that depicts the areas that have changed zoning classifications
since the County adopted zoning guidelines in 1960.
| ATTRIBUTE |
DESCRIPTION |
| Class |
This is the zoning district class that dictates the allowable
uses and associated conditions within the various classes. |
| Zoning Application Number |
This is the application number for the zoning application that
was filed with the Planning and Zoning Department Office. |
| P&Z Number |
This is an identification number that the Planning and Zoning
Office used to track the various applications. |
| Acre |
This is total acreage that was applied for to be rezoned during
the zoning application process. |
| Subdivision Number |
If there was an associated subdivision with the zoning, this application
number will be listed here. |
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Historical Zoning:
Areas that have had multiple zoning changes, or, were zoned in the County
and then subsequently annexed into the various cities.
| ATTRIBUTE |
DESCRIPTION |
| Class |
This is the zoning district class that dictates the allowable
uses and associated conditions within the various classes. |
| Zoning Number |
This is the application number for the zoning application that
was filed with the Planning and Zoning Department Office. |
| Sub Number |
If there was an associated subdivision with the zoning, this application
number will be listed here. |
| ID |
This is an identification number that the Planning and Zoning
Office used to track the various applications. |
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Fringe Areas:
The last main data set that the P&Z Office maintains. These data
describe the existing 28(e) agreements; that is, the negotiated Fringe
Area Agreements between the various Cities and the County. These agreements
typically describe what review and requirements the developer will have
when attempting to develop in certain geographical areas. There are
not agreements between the County and all of the Cities, but for most
of them.
| ATTRIBUTE |
DESCRIPTION |
| Area |
This is the designated Fringe Area name; for example: Fringe Area
C. There may be more than one Fringe Area C, but should only be
one per each city’s agreement. |
| City Name |
Name of the City that the County negotiated the Fringe Area Agreement
with. |
| Adoption Date |
The date that the agreement was enacted and enforced. |
| Expiration Date |
The date that the agreement is set to expire; all of these agreements
have an expiration date, but there is also a means for the Cities
and the County to re-negotiate the terms of the agreement. |
| Review Date |
The review date, if established in the agreement, specifies the
date by which the review of the document needs to be completed.
|
| Comments |
Additional comments that may pertain to a particular area or use. |
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Parcel Polygons and Parcel Temp Polygons:
Parcel Update
Parcel Polygons contains polygons that represent parcels within Johnson
County. Parcels Temp Polygons contains polygons that have recently been
developed, but have not been fully incorporated into the Parcel Polygons
layer.
| ATTRIBUTE |
DESCRIPTION |
| Assessor’s Information |
10 digit parcel identification number that also serves as the
hyperlink to the
County and Iowa City Assessor’s websites. |
| Treasurer’s Information |
10 digit parcel indentification number that also serves as the
link to the
County Treasurer’s website |
| Lot 2 |
|
| Featype |
Numeric code signifying what type of parcel the feature represents
0 – single stand alone parcel
1 – parcel containing buildings on leased land.
2 – building on leased land
3 – condominium
4 – water body (Iowa River, Cedar River, Coralville Reservoir,
Lake McBride) |
| Taskid |
Task identification number used to track when the parcel was created. |
| APN |
Auditor’s parcel number |
| Legal Square Footage |
The legal square footage, as given on the plat of survey. |
| Legal Acre |
The legal acreage, as given on the plat of survey. |
| Hydro Name |
|
| Calculated Acres |
|
| District |
Tax district number |
| District name |
Tax district name |
| School Area |
|
| City/Township Abbreviation |
Abbreviated city or political township name |
| School Abbreviation |
School district abbreviation |
| City/Township |
Full text of city or polictial township names |
| School |
Full text of school district name |
| AlternateID |
Map sheet identification (example- 10-10-1N) |
| MailingName |
Name of person(s) who recieves the tax bill |
| MailingAddress1 |
P.O. Box number or second name of person taxes are mailed to. |
| MailingAddress2 |
House number and street name for address where the tax bill is
sent. |
| MailingAddress3 |
Town name and state abbreviation of address where the tax bill
is sent. |
| MailingZipCode |
Zipcode for address where the tax bill is sent. |
| Section |
Public Land Survey section number (ranges from 1 to 36). |
| Township |
Public Land Survey township (ranges from 77 to 81). |
| Range |
Public Land Survey range (ranges from 5 to 8). |
| Subdivision |
Name of subdivision parcel resides within. |
| Block |
Original subdivision block number. |
| Lot |
Original lot number that the parcel was constructed from. |
| LegalDescription |
Legal description of the parcel. |
| DeedHolder1 |
Owner of parcel by deed. |
| DeedHolder2 |
Owner of parcel by deed. |
| DeedHolder3 |
Owner of parcel by deed. |
| DeedHolder4 |
Owner of parcel by deed. |
| DeedDate |
Recorded date of current deed. |
| DeedBook |
Recorder’s book of deed. |
| DeedPage |
Recorder’s page of deed. |
| ContractOwner1 |
Contract owner of parcel. |
| ContractOwner2 |
Contract owner of parcel. |
| ContractOwner3 |
Contract owner of parcel. |
| ContractOwner4 |
Contract owner of parcel. |
| ContractDate |
Contract date. |
| ContractBook |
Recorder’s book for contract. |
| ContractPage |
Recorder’s page for contract. |
| BankCode |
|
| Tiff District |
Tax Increment Finance district name (if located in a current TIF) |
| Year |
Current tax assessment year |
| LandValue_Assessed |
100% land valuation |
| BldgValue_Assessed |
100% building valuation |
| DwellValue_Assessed |
100% dwelling valuation |
| Property Class |
Property type |
| Building Type |
Code signifying what type of building the feature represents
See this key for details. |
| MilitaryCredit_Avail |
Military exemption value |
| HomesteadCredit_Avail |
Homestead credit value |
| CSRPoints |
|
| Exempt Value |
|
| Acres_Exempt |
|
| Acres_Net |
|
| Building Count |
|
| Dwelling Count |
|
| Unit Count |
|
| Apartments |
Number of apartments in building. |
| HouseNumber |
House number of parcel site address. |
| HouseNumSuffix |
|
| PreDirection |
Prefix direction of parcel site address. |
| Street |
Street name of parcel site address. |
| Street Suffix |
Street type of parcel site address. |
| Post Direction |
Post direction of parcel address. |
| Apartment Description |
|
| Apartment Unit |
Unit number/letter of condominium. |
| City |
City of parcel address. |
| State |
State of parcel address. |
| Zip Code |
Zipcode of parcel address. |
| Zip Plus 4 |
4 digit zipcode sub zones |
| Property Address |
Full site address of parcel (doesn’t include city, state,
or zipcode) |
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