Northwest Ohio GIS Services

Mapping the land, water & communities of the Black Swamp region.

Black Swamp Analytics LLC provides geospatial analysis, land-use mapping, and emergency coordination support for counties, townships, and agencies across northwest Ohio.

Serving Wood, Lucas, Hancock, Henry, Fulton & Sandusky counties · Based in Bowling Green, Ohio

FIG. 1 — MAUMEE WATERSHED2024

What we do

Geospatial services built for local government & agencies.

From parcel-level land-use analysis to countywide emergency response mapping, we turn raw spatial data into clear, actionable products for the people who serve northwest Ohio.

Land Use & Parcel Analysis

Detailed parcel mapping, zoning overlays, and land-use change detection for planning departments and township trustees.

  • Parcel & zoning maps
  • Land-use change analysis
  • Floodplain & wetland overlays
  • Annexation & boundary review

911 & EMA Coordination Mapping

Emergency response mapping, address point verification, and evacuation route planning for EMA directors and dispatch centers.

  • Address point verification
  • Evacuation route mapping
  • Dispatch coverage analysis
  • Incident command overlays

Watershed & Drainage Mapping

Watershed delineation, drainage analysis, and water quality monitoring support for soil & water conservation districts.

  • Watershed delineation
  • Tile drainage mapping
  • Riparian buffer analysis
  • Water quality site mapping

Need something not listed here?

We work across the full ArcGIS and QGIS ecosystem and can tailor a project to your agency’s specific data and reporting needs. Reach out and we’ll figure it out together.

Selected Work

Projects delivered across northwest Ohio.

Client
Wood County EMA
Year
2024
Scope
Countywide
01 — Emergency Response

Wood County Evacuation Route & Shelter Mapping

Developed a complete evacuation route system for Wood County, integrating road network analysis, traffic flow modeling, and designated shelter locations. Delivered as interactive web maps for EMA staff and printable PDF atlases for field use.

340+Miles of routes mapped
12Shelter sites
4municipalities covered
Client
Maumee BIA
Year
2023
Scope
Watershed
02 — Watershed Analysis

Maumee Bay Watershed Land-Use & Runoff Study

Analyzed land-use patterns across the Maumee Bay watershed to identify high-runoff areas and prioritize conservation buffer placement. Combined satellite imagery, parcel data, and hydrology models into a single decision-support dashboard.

6,500Acres analyzed
1,200+Parcels reviewed
14Sub-watersheds
Client
Hancock County
Year
2023
Scope
Multi-township
03 — Land Use

Hancock County Township Zoning Atlas

Produced a comprehensive zoning atlas for 15 townships in Hancock County, standardizing disparate zoning data into a single, queryable format. The atlas is used by county planners for rezoning reviews and development proposals.

15Townships
8Zoning categories
1Unified atlas

About

Rooted in the Black Swamp.

Black Swamp Analytics LLC is a GIS and geospatial analysis firm based in Bowling Green, Ohio. We specialize in serving the counties, townships, and agencies of the former Great Black Swamp region — the flat, rich, poorly-drained land that stretches across northwest Ohio and into Indiana.

We believe local government deserves the same quality of spatial analysis as the largest federal agencies. Our work helps planners, EMA directors, engineers, and elected officials make better decisions with clear, accurate, and well-designed maps.

Every project is grounded in the specific needs of the community it serves — because no two townships are the same, and no two watersheds drain alike.

  • ArcGIS Pro & QGIS certified
  • Ohio geospatial data expertise
  • Public-sector experience
  • FEMA & NGA data integration

Let’s map your next project.

Whether you need a parcel-level analysis or a countywide emergency response system, we can help. Reach out for a free consultation.

Email us
Location
Bowling Green, Ohio 43402
Hours
Mon–Fri, 8:00 AM – 5:00 PM ET
Service Area
Northwest Ohio & beyond