Published
Annexation moves the line: in St. Anthony it takes recorded consent, a 60/50 vote of the ground, or a judge
Annexation is how the line moves — and the law changed in 2024
The Area of City Impact decides which desk reviews your plans today. Annexation decides where the city limits will be tomorrow. It is the legal act that moves a parcel inside the city — after which the county’s belt rules stop applying to that land entirely, the city’s desks and codes take over, and questions like sidewalk before occupancy start having city answers.
The legislature rewrote the annexation statute wholesale in 2024 and amended it again in 2026, and the rewrite is built around one idea, stated in its own first words:
“It is the intent of the legislature to honor the right of private landowners to have a voice in their own governance, to minimize conflict between citizens and municipalities, to provide a mechanism for the orderly development of Idaho cities…”
— Idaho Code §50-222(1), added by the 2024 Idaho Legislature, chapter 321, and amended by the 2026 Idaho Legislature, chapter 97. Retrieved 23 September 2026
Everything below is that intent turned into machinery: two ways a city can annex, a set of parcels the city cannot touch, and a protection for owners who never said yes.
Path one: you ask for it
The simple path is consent. If all landowners of the subject property have requested annexation, or a landowner of a contiguous parcel has consented, most of the process below does not apply — the city proceeds to the planning and zoning steps and enacts an ordinance. Three conditions frame even this easy path:
- Consent must be written — and recorded. A consent binds later purchasers, heirs and assigns only if it is recorded in the county recorder’s office. An unrecorded yes is a maybe.
- The land must become contiguous before it joins. You can consent before your parcel touches the city, but no annexation happens — consent or not — until it does. And contiguity means a real shared border: land connected only by a “shoestring” strip does not count.
- The belt comes first. St. Anthony’s own comprehensive plan states the rule in its chapter on the impact area: “The establishment of the City’s Area of Impact is required before a city can annex additional lands.”
Consented land may even extend beyond the belt — if it is contiguous to the city and the comprehensive plan includes the area.
Path two: the city initiates — and needs 60/50
A city-initiated annexation must clear a checklist, and its centrepiece is a double threshold:
“Landowners representing sixty percent (60%) of the parcels and at least fifty percent (50%) of the area proposed for annexation give voluntary consent… and record such consent with the county recorder’s office…”
— Idaho Code §50-222(3)(f). Retrieved 23 September 2026
Sixty percent of the parcels, and half the acreage, must have voluntarily consented — recorded — before the rest can be brought in. The statute does not let a city outvote its way past owners of large tracts, nor past a scattered majority of small ones. Around the threshold sit notice and process requirements:
- Written notice to every landowner and the county commissioners, carrying a summary of the annexation plan, the right to give or withhold consent, where consent is filed, and a filing deadline of no later than 45 days after notification.
- Published and mailed hearing notice in the city’s official newspaper and by first-class mail to every landowner, at least 28 days before the initial public hearing.
- Two public hearings — the city council and the planning and zoning commission each hold one (combined into a single hearing only where the city has no commission, and then the mailed notice stretches to 45 days).
The city must also adopt a written annexation plan. Its required contents:
- How tax-supported municipal services would reach the subject land.
- The changes in taxation and other costs annexation would bring.
- How fee-supported services, if any, would be provided.
- Effects on the other local governments now serving the land.
- The proposed future land use and zoning for the area, subject to hearing.
- A statement of the public purposes annexation would serve.
If the requirements are met and the city agrees, the act itself is an ordinance.
The trap in the pipe: implied consent
Here is the clause that connects annexation to the water and sewer decision, and the reason the order of your paperwork can matter for decades:
“‘Implied consent’ means that valid consent to annex is implied for the area of all lands connected to a water or wastewater collection system owned and operated in its entirety by the city if the connection was requested in writing by the owner or the owner’s authorized agent prior to July 1, 2024, or if the connection was completed before July 1, 2008.”
— Idaho Code §50-222(2)(c). Retrieved 23 September 2026
Connect to a city-owned water or sewer system — the connection the 300-foot policy may already push you toward — and under the right dates, the law reads that connection as your consent to be annexed. The dates are the whole rule: a connection requested in writing before July 1, 2024, or completed before July 1, 2008, can imply consent. A connection requested after July 1, 2024 does not, on this text. Owners weighing a city hookup today should understand both halves: what the local policy requires, and what the annexation statute does — and does not — infer from the signature.
What the city cannot annex — or must leave alone
| Protection | The rule |
|---|---|
| Agricultural and forest land | Land of five acres or more actively devoted to agriculture or forest use may not be annexed without the owner’s express written permission — even if surrounded by the city |
| Nonconsenting owners | Owners annexed without their consent cannot be required to use the city’s water or wastewater services, may keep or replace compliant existing systems, and if city construction destroys their working system the city pays |
| Shoestring strips | No annexation that reaches land only via a strip or right-of-way connection — highways and railroad rights-of-way included |
| Enclaves | Residential islands of 30 or fewer parcels fully surrounded by city land skip the full process |
| Fairgrounds, airports, large recreational PUDs | Each carries its own consent or approval requirement before annexation |
The agricultural protection is the one with the most surface area around St. Anthony, where the belt meets working farm ground on nearly every side.
If it goes wrong: 28 days to court
A city-initiated annexation decision can be appealed to district court by an affected person, and the window is short: 28 days after the date the annexation ordinance is published. The statute orders such cases advanced “as a matter of immediate public interest.” A dispute over the 60/50 count, the notices, or a missing signature is a statutory argument — but only if it is filed in time.
The local pattern
Two sentences in the city’s 2023 comprehensive plan describe how this has actually proceeded here. The belt was “established” under the 2005 city-county agreement before any of this growth, and “St. Anthony has also grown in area since the 2012 comprehensive plan’s adoption as additional property has been annexed into the city.” The plan also notes the belt “allows for representation of citizens in the impact area on the City’s Planning and Zoning Commission” — the belt’s residents already sit inside the city’s advisory machinery before any line moves.
Before you take a position on annexation
- Establish the belt question first — which belt, which desk — because annexation is what removes a parcel from that chapter’s rules.
- Pull the recorded consents for your parcel at the county recorder’s office. If a prior owner recorded one, it binds the land.
- Check the dates on any city utility connection you or a predecessor requested: in writing before July 1, 2024, or completed before July 1, 2008, can imply consent to annex.
- Five acres or more in active agriculture or forest use? That land is yours to keep out of the city, in writing, or not at all.
- City-initiated case? Count the parcels and the acreage yourself against 60/50, and calendar both the 45-day consent deadline and the 28-day appeal window after any ordinance publishes.
- Ask what changes on the day the line moves — which code list, which fees, and which obligations arrive with city permits.
- Then call (208) 656-1745 and pressure-test the whole picture before you rely on any of it.
Common questions
Can St. Anthony annex my land without my consent?
Only through the city-initiated process, and even then landowners representing 60 percent of the parcels and at least 50 percent of the area must have voluntarily consented and recorded it. Nonconsenting owners who get annexed cannot be forced onto city water or sewer, and land of five or more acres actively devoted to agriculture or forest use cannot be annexed at all without the owner's express written permission.
What is the 60/50 rule in Idaho annexation?
Idaho Code 50-222(3)(f): a city-initiated annexation requires recorded voluntary consent from landowners representing sixty percent of the parcels in the proposed area and at least fifty percent of its total acreage. Both thresholds - parcel count and land area - must be met.
Does connecting to city sewer mean I consent to annexation?
It can, depending on dates. Idaho Code 50-222(2)(c) implies valid consent to annex for land connected to a city-owned water or wastewater system if the connection was requested in writing before July 1, 2024, or completed before July 1, 2008. Connections requested in writing after that date do not create implied consent under this text.
How much notice do landowners get before an annexation hearing?
Written notice to each landowner and the county commissioners with a consent-filing deadline no later than 45 days after notification, plus published and first-class-mailed hearing notice at least 28 days before the initial public hearing. The city council and the planning and zoning commission each hold a hearing - combined only if the city has no commission, in which case mailed notice stretches to 45 days.
Can farmland be annexed into a city in Idaho?
Not without the owner's express written permission if it is five acres or more actively devoted to agriculture or forest land as defined by state law - even if it is completely surrounded by city land.
What happens to the Area of City Impact rules when land is annexed?
They stop applying to it. Section 17.04.010(4) of the impact area agreement says that upon annexation of any part of the Impact Area into the city, the chapter no longer applies to the annexed area - city desks and city rules take over completely.
How long do I have to appeal a city-initiated annexation?
Twenty-eight days. An affected person must file in district court no later than 28 days after the date the annexation ordinance is published, and the statute directs that such cases be advanced for hearing at the earliest practicable time.
Can I ask to be annexed into St. Anthony?
Yes - when all landowners of the property request it, or a contiguous owner consents, the full city-initiated process does not apply. The consent must be written and recorded in the county recorder's office to bind future owners, and the land must actually be contiguous to the city before annexation can occur, even with consent on file.
What must a city put in its written annexation plan?
How tax-supported municipal services would be provided, the changes in taxation and other costs annexation would bring, how fee-supported services would reach the land, effects on other local governments now serving it, the proposed future land use and zoning, and the public purposes annexation would serve.