Miscellaneous Information

Various Identification Codes ...

GNIS Codes ...

The U.S. Board on Geographic Names (BGN) was created to address the problems caused by spelling and naming variations. The BGN will usually recognize an existing name or, when necessary, chose a name for a geographic feature (such as a mountain, lake, river, stream, city, town, village, dam, bridge, etc).

The BGN names are kept in a database called the Geographic Names Information System (GNIS) and it is the official Federal repository. The GNIS is operated and maintained by the U.S. Geological Survey (USGS).

A unique and permanent code has been assigned for each name in the GNIS database. These names and identifiers are definitive and it is intended that they are to be used by all departments of the Federal Government:

GNIS ID for Mequon: 1583699

GNIS ID for Ozaukee County: 1581105

GNIS ID for Wisconsin: 1779806

FIPS Codes ...

In a past effort, various federal agencies created a set of codes with a purpose similar to the GNIS codes. These codes are called the Federal Information Processing Standard (or the FIPS 55 codes). Although they are still used by some organizations, the FIPS codes are obsolete and will ultimately be replaced by the GNIS codes.

The following FIPS codes apply to Mequon:

Place (Community) Code:	51150
State Code:	55 (Wisconsin)
County Code:	089 (Ozaukee County)

Since the Place and County FIPS codes are not unique and can be repeated in other States, it's necessary to combine the State code with the Place and County FIPS codes to uniquely identify them - for example:

State/Place Code:	55/51150
State/County Code:	55/089

As already mentioned, the FIPS codes are to be replaced by the GNIS codes. The following reflect those changes:

	FIPS Code	translates to	GNIS Code
State of Wisconsin:	55		1779806
Ozaukee County:	55/089		1581105
Mequon:	55/51150		1583699

GPS Location - GNIS vs Census ...

An important aspect of the GNIS code is that it assigns a GPS location (the latitude/longitude) to the geographic feature. This location is simply a point on the map and does not represent the size or shape of the feature. In the case of Mequon, it is a point within Mequon that might be a post office, the city hall or simply an intersection - the point should really be considered arbitrary and only indicating a general location.

For Mequon, the GNIS GPS location is given as:

Lat:   43° 14' 9"   (or 43.24°)

Lon:   -87° 59' 21"   (or -87.99°)  

Determined by its statistical needs, the Census Bureau has defined a sampling area for Mequon - this area also contains a map point. As with the GNIS code, the location of the Census point should be considered as being arbitrary within the sampling area.

For Mequon, the Census 2010 GPS location is given as:

Lat:   43° 12' 47"   (or 43.21°)

Lon:   -88° 0' 49"   (or -88.01°)  

The map point defined by the Census Bureau lies 10,525 feet to the southwest<1> of the point given by the GNIS (see above).

You might note that the GPS location given for the 2010 Census is different than the location that was specified by the 2000 Census:

Lat:   43° 13' 27"   (or 43.22°)

Lon:   -87° 57' 36"   (or -87.96°)  

The GPS location given for the 2000 Census lies 2 miles to the east<2> of the point given by the 2010 Census.

Regional Codes ...

For statistical purposes, the US Census Bureau has divided the country into four Regions. Mequon is located in Region #2 (the Midwest Region).

In turn, the US Census Bureau has further divided each Region into Divisions. Mequon is located in Division #3 (the East North-Central Division).

The Office of Management and Budget (OMB) has created ten Federal Regions. Mequon is located in Region V (Region 5).

The Federal Emergency Management Agency (FEMA) has created ten Management Regions. Mequon is located in Region V (Region 5).

Referenced GNIS Records ...

GNIS ID #1569354   (Name of Record: Mequon)

Class: populated place

A place or area having clustered or scattered buildings and a permanent population (such as a city, settlement, town or village). The boundaries may or may not coincide with the perceived population.

A 'populated place' record may have a corresponding 'census' or 'civil' record. The information contained in the 'populated place' record applies only to the class and should not be confused with either the 'census' and 'civil' classes.

County: Ozaukee

Map Name: Thiensville

Lat: 43.2363956       Lon: -87.9845335  

Elev: 204 ft.

GNIS ID #1583699   (Name of Record: City of Mequon)

Class: civil

A political division formed for administrative purposes (such as a borough, county, incorporated place, parish, town or township).

A 'civil' record may have a corresponding 'census' or 'populated place' record. The information contained in the 'civil' record applies only to the class and should not be confused with either the 'census' and 'populated place' classes.

County: Ozaukee

Map Name: Thiensville

Lat: 43.23584       Lon: -87.9892559  

Elev: 202 ft.

Referenced FIPS Records ...

FIPS Code: 55/51150   (Place Name: Mequon)

County: Ozaukee     (FIPS State/County: 55/089)

Class: C5

GSA Code: 3002

MRF Code: 1595

MSA Code: 5080

Off-the-Road Links ...

Unfortunately, we don't know of a website for Mequon. If you can help, please contact us through our Feedback Page.

The official website for Ozaukee County: www.co.ozaukee.wi.us/

The official website for State of Wisconsin: https://www.wisconsin.gov/

The official website of the U.S. Board on Geographic Names (BGN)

The official website of the U.S. Geological Survey (USGS)

The official website of the U.S. Census Bureau

The official website of the U.S. Office of Management and Budget (OMB)

The official website of the U.S. Federal Emergency Management Agency (FEMA)