Chisago County, MN zoning map, flood zone and property lines by address
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Towns in Chisago County: North Branch, Wyoming, Chisago City.
Flood zone by address
ParcelSheet reads FEMA's National Flood Hazard Layer at the lot: the zone, whether it is a high risk area where lenders ask for flood insurance, and the base flood elevation where FEMA lists one. FEMA's countywide study for Chisago County has 39 FIRM panels, the newest effective April 2012; no coastal V zones are mapped in it.
The official panel and any Letter of Map Amendment are at FEMA's Map Service Center. An elevation certificate for a Chisago house comes from a licensed surveyor and is often on file with the county or city building office.
Property lines
The parcel outline, parcel number and mapped size come from the Minnesota open parcel layer (Minnesota Geospatial Information Office, from the counties that share their parcels), so a Chisago lot shows the same lines the county assessor draws. Chisago County covers about 265,538 acres of land and 17,588 acres of water.
Mapped lines are approximate. The Chisago County assessor keeps the parcel record (Chisago County website); a licensed surveyor sets the true corners.
Zoning
In Minnesota zoning is set by the county, the township or the city, depending on where the lot is: in Chisago County, North Branch, Wyoming, Chisago City each zone the land inside their limits. ParcelSheet shows the use code on the lot's parcel record and the municipality it sits in; the county, township or city zoning office has the district, the uses it allows and the lot size it needs. The Chisago County website lists the county's municipalities.
ADU and guest houses
Under Minnesota's zoning laws (Minnesota Statutes chapters 394 and 462), the county, the township or the city, depending on where the lot is can allow an accessory dwelling unit on a lot with a house. Whether a Chisago lot can add one depends on its district; the county, township or city zoning office has the rule. ParcelSheet shows the mapped lot size and the ground's slope, the first two things the question turns on.
Septic and soil
ParcelSheet reads the USDA soil survey at the lot: the soil's name, its septic absorption rating and whether it is prime farmland. Chisago County is soil survey area MN025, Chisago County, Minnesota, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Chisago County needs a permit from the Chisago County septic (SSTS) program under the Minnesota Pollution Control Agency rules.
Setbacks
Setbacks in Chisago County come from the zoning district: the front, side and rear distances a house must keep. ParcelSheet does not draw setback lines; the county, township or city zoning office gives them for the lot's district, and North Branch, Wyoming, Chisago City for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near a Chisago lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Chisago County?
Type the address in the box above and ParcelSheet reads FEMA's flood zone at the lot's center. FEMA's countywide flood map for Chisago County has 39 panels, the newest effective April 2012. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Chisago County?
Open the Minnesota map, type the address, and the parcel outline from the Chisago County assessor shows on the map with its parcel number and mapped size. Mapped lines are approximate; only a licensed surveyor sets the true corners.
What is my property zoned in Chisago County?
Zoning in Chisago County is set by the county, the township or the city, depending on where the lot is (such as North Branch, Wyoming). ParcelSheet shows the use code on the parcel record and names the municipality; the county, township or city zoning office has the final word.
Can I build an ADU in Chisago County?
Under Minnesota's zoning laws (Minnesota Statutes chapters 394 and 462), the county, the township or the city, depending on where the lot is can allow an accessory dwelling unit, and each sets its own rules. In Chisago County ask the county, township or city zoning office for the lot's district first; ParcelSheet shows the lot size as mapped so you can see the room you have.
Do I need a septic permit in Chisago County?
Yes. A new or changed septic system in Chisago County needs a permit from the Chisago County septic (SSTS) program under the Minnesota Pollution Control Agency rules. ParcelSheet shows the USDA soil survey's septic rating at the lot, from survey area MN025 (Chisago County, Minnesota).
What can I build on 5 acres in Chisago County?
Zoning in Chisago County is set by the county, the township or the city, depending on where the lot is (such as North Branch, Wyoming). The zoning district decides the uses, how many homes and the smallest lot it allows on 5 acres. ParcelSheet shows the lot size as mapped and the use code on the parcel record; the county, township or city zoning office has the district and its rules. See the Chisago County website.
What are the residential setbacks in Chisago County (2026)?
Setbacks in Chisago County come from the zoning code of the municipality the lot sits in: the front, side and rear distances depend on the lot's district. ParcelSheet does not draw setback lines or give a number it did not read; the county, township or city zoning office gives them for the district. See the Chisago County website.
Next to Chisago County: Anoka County, Isanti County, Kanabec County, Pine County, Washington County.
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