The primary purpose of this zone is to blend farmlands with rural residences in outlying areas of the City. Within this zone, a wide variety of agricultural, mining, forestry and rural activities are permitted, some of which require special exception approval due to their potential for impact to adjoining rural residences. Residential development is permitted at low densities due to a general lack of public utilities; however, higher densities are permitted where public utility systems are utilized.
The purpose of this zone is to reflect and permit a continued suburban development pattern with lower densities and detached housing units. Because areas within this zone may or may not have access to public utilities, design standards vary depending upon those public utilities utilized. In addition, where dwelling units are constructed in an area planned for public sewer service that precedes sewer installation, such lots will be required to employ utility infill designs and capped sewer lines. Uses permitted within this zone are limited to complement suburban neighborhoods, with accessory uses that will not detract from the residential character.

The purpose of this zone is to reflect and permit a continued development pattern that has evolved in these older existing neighborhoods. Characteristics of this zone include smaller and narrower lot sizes with detached and attached dwellings served by public utilities. Uses permitted within this zone are limited to complement these existing neighborhoods, with accessory uses that will not detract from the residential character.

The purpose of this zone is to accommodate a wide range of housing unit types and densities along with compatible uses. These areas are served by public utilities and specifically provide for the opportunity to develop affordable housing units to expand housing opportunities within the City. Uses permitted within this zone are limited to complement these neighborhoods, with accessory uses that will not detract from the residential character.
The purpose of this zone is to provide commercial goods and services to local residents who live in the City. Uses have been limited to those that residents are likely to need on a daily or regular basis. Overall, retail size has been restricted to uphold the traditional central business setting and local pedestrian orientation of this zone and to encourage the adaptive reuse of converted historic buildings rather than the construction of new commercial buildings. Requirements have been specified to preserve the urban character of this area and reflect the tightly knit land use pattern. Limited exterior activities have been allowed to contribute to the vitality and diversity of this area. Conversion apartments have also been accommodated upon upper floors, if off-street parking is provided.

This zone provides suitable locations for highway-oriented retail, service, and entertainment businesses. The uses may involve outdoor activities and/or storage areas, like automobile, boat and trailer sales, and service establishments. The uses provided in this zone are meant to serve local residents as well as those motorists passing through the City. Access to these areas is provided by adjoining major roads. Specific setbacks are imposed upon outdoor storage areas to protect adjoining properties.

The purpose of this zone is to provide for the orderly development of the Saint Marys Regional Medical Center, its affiliates and related services. Uses permitted foster a variety of health-care-related facilities and uses, to advance the quality and availability of health care services in the City and greater area and the development and operation of a modern health care campus.

 This zone provides for light industrial manufacturing and wholesale distribution facilities in an industrial park setting that contributes to the well-being of the City by diversifying its economy and providing valuable employment opportunities. The required lot sizes have been kept small to accommodate the startup industries that are likely to emerge; however, larger and heavier industries have also been permitted. This zone provides for light industrial uses as permitted by right but requires obtainment of a conditional use permit for heavier and potentially more-objectionable types of industrial uses. These areas have been located near existing public utility service areas and along major roads. Design standards have been imposed to create attractive site designs and moderate the objectionable impacts associated with industrial uses. Substantial setbacks are used to protect adjoining residences.
This zone provides for a wide variety of light industrial uses that contribute to the well-being of the City by diversifying its economy and providing valuable employment opportunities. In this zone, uses are permitted with a minimum of regulations, reflecting the built-up character of these areas that were largely developed prior to local zoning regulations. While design standards imposed between uses in this zone are minimal, buffering and screening regulations aim to improve compatibility around the edges of the zones where they abut other neighborhoods. Local officials should seize opportunities to improve these buffers and screens when uses adapt and change.