Isanti County, MN zoning map, flood zone and property lines by address
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Towns in Isanti County: Cambridge, Isanti, Braham.
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 Isanti County has 28 FIRM panels, the newest effective November 2003; 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 an Isanti 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 an Isanti lot shows the same lines the county assessor draws. Isanti County covers about 278,900 acres of land and 10,182 acres of water.
Mapped lines are approximate. The Isanti County assessor keeps the parcel record (Isanti 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 Isanti County, Cambridge, Isanti, Braham 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 Isanti 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 an Isanti 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. Isanti County is soil survey area MN059, Isanti County, Minnesota, last updated September 2026, on Web Soil Survey.
A new or changed septic system in Isanti County needs a permit from the Isanti County septic (SSTS) program under the Minnesota Pollution Control Agency rules.
Setbacks
Setbacks in Isanti 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 Cambridge, Isanti, Braham for land inside their limits.
Hazards that apply
- Wetlands and wildfire. ParcelSheet shows the National Wetlands Inventory near an Isanti lot and the Forest Service wildfire hazard rating at it.
Questions
Is my house in a flood zone in Isanti 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 Isanti County has 28 panels, the newest effective November 2003. A lender or insurer uses the official FIRM panel; FEMA's Map Service Center has it.
How do I find property lines in Isanti County?
Open the Minnesota map, type the address, and the parcel outline from the Isanti 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 Isanti County?
Zoning in Isanti County is set by the county, the township or the city, depending on where the lot is (such as Cambridge, Isanti). 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 Isanti 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 Isanti 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 Isanti County?
Yes. A new or changed septic system in Isanti County needs a permit from the Isanti 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 MN059 (Isanti County, Minnesota).
What can I build on 5 acres in Isanti County?
Zoning in Isanti County is set by the county, the township or the city, depending on where the lot is (such as Cambridge, Isanti). 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 Isanti County website.
What are the residential setbacks in Isanti County (2026)?
Setbacks in Isanti 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 Isanti County website.
Next to Isanti County: Anoka County, Chisago County, Kanabec County, Mille Lacs County, Pine County, Sherburne County.
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