Skip to main content
CityRuleLookup

Blue Earth County, MN Short-Term Rentals: Occupancy Limits (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Occupancy basis
Capacity of the property's SSTS
Sewer-district alternative
Lower of business plan or MDH license figure
Rentals per lot
One short-term rental unit maximum
Enforcement
Planning agency; IUP revocable

Summary

Short-term rental occupancy in unincorporated Blue Earth County is tied directly to septic capacity: Sec. 24-337(b)(1) caps the number of guests at whatever the property's subsurface sewage treatment system can handle.

These county ordinances apply to unincorporated areas of Blue Earth County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(1)The maximum occupancy at any given time shall be in compliance with the capacity of the subsurface sewage treatment system (SSTS) serving the unit. If the unit is served by a municipal or a sewer district system, the occupancy will be limited to the maximum occupancy identified in the applicant's business plan or the occupancy identified by a lodging license from the Minnesota Department of Health, whichever is lower.

Full Breakdown

Blue Earth County's short-term rental ordinance, Sec. 24-337, sets occupancy as a function of wastewater capacity rather than a flat headcount. Under subsection (b)(1), the maximum occupancy at any given time must comply with the capacity of the subsurface sewage treatment system (SSTS) serving the rental unit; if the property instead ties into a municipal or sewer district system, occupancy is capped at whichever is lower of the number stated in the applicant's business plan or the occupancy figure on a lodging license issued by the Minnesota Department of Health.

Because SSTS sizing drives the cap, the application file required under Sec. 24-337(a)(3)(d) must include a subsurface sewage treatment system commercial operating permit where appropriate, and Sec. 24-337(d)(2)(a) separately requires the system to be sized to accommodate the unit's maximum occupancy under Sec. 6-377. Holding tanks are not allowed as a substitute for a properly sized SSTS. There is also a one-rental-per-lot cap under Sec. 24-337(b)(2), and the rental property manager must keep a current list of occupants available to county staff or law enforcement on request under Sec.

24-337(b)(3). Applicants seeking an interim use permit for a short-term rental unit must also check with the Minnesota Department of Health under Minnesota Rules Chapter 4625 to determine whether a lodging license is required, and if so, keep it current annually with proof supplied to the planning agency.

Violations & Fines

Operating over the SSTS-based occupancy cap or without a properly sized system is grounds for the planning agency to investigate a complaint and, if substantiated and unresolved with the owner or manager, to invalidate the interim use permit following review by the planning commission and board of commissioners.

Frequently Asked Questions

How is short-term rental occupancy calculated in unincorporated Blue Earth County?
Sec. 24-337(b)(1) ties the maximum occupancy at any time to the capacity of the property's subsurface sewage treatment system, unless the unit is on a municipal or sewer district system, in which case the lower of the business plan figure or a Minnesota Department of Health lodging license number applies.
Can holding tanks be used to increase occupancy capacity?
No. Sec. 24-337(d)(2)(c) prohibits holding tanks for short-term rental units, so occupancy stays tied to a properly sized subsurface sewage treatment system under Sec. 6-377.
What happens if a rental exceeds its SSTS-based occupancy limit?
The county planning agency investigates substantiated complaints, and an owner or manager who does not resolve the issue risks invalidation of the interim use permit after review by the planning commission and board of commissioners.

Sources & Official References

Other rules in Blue Earth County

All Blue Earth County rules

Compare Blue Earth County to another location·View the Minnesota short-term rentals overview

Get notified when Occupancy Limits in Blue Earth County, MN changes

We'll email you the moment we detect a change in the code. No spam, unsubscribe anytime.

We'll never sell or share your email. One-click unsubscribe in every email.

See something wrong?

Help us keep this page accurate. If you notice an error or outdated information, let us know.