Slope County North Dakota Fair Festival
Every August, North Dakota’s least populous county stages a fair that its own board describes in the largest terms available to it. The Slope County Fair takes over the fairgrounds at Amidon, the county seat, across the last full weekend of August, in a county that counted just 706 people at the 2020 census. No fair website, premium book or published gate price exists to plan around. What the record shows instead is a working ranch-country fair of rodeos, exhibits and livestock, run as the county’s reunion.
The claims attached to this fair are as big as the county is small. Writing to the state legislature in January 2025, a member of the Slope County Fair Board called it the longest continuous county fair in North Dakota and dated its beginning to August 1920, and a county feature published in the summer of 2026 repeated that billing. Those statements are carried here exactly as what they are: claims. Other layers attach irreconcilable ages and edition counts to this fair, so no edition number is printed for it.
About the Slope County Fair
The Slope County Fair is run by the Slope County Fair Board, the only organiser named for it in any published layer. No fair association, president, roster or fair office appears anywhere in the record. The board’s public voice is a single document: written testimony sent to a legislative committee on 30 January 2025 by board member Lily McFadden, who asked the state to invest in the infrastructure of the county fairgrounds and described the fair as the place where local youth showcase their hard work through 4-H.
Amidon hosts the fair in every layer that names a place. The town has held the county seat since 1915, and the farm-press schedules, the county feature and the regional newspapers all put the fair there. Marmarth, the county’s largest community, hosts no part of it in any layer, and its own celebrations belong to that town alone. Around the board stand partners who are never organisers: the county Extension service runs the 4-H programme and staged its own horse clinic and horse show at the grounds in early August 2025, entirely as Extension events; local firefighters appear in the press record serving drinks at the fairgrounds tent; and a county 4-H club led the pledge when the rural electric cooperative held its annual meeting at the fairgrounds in June 2022.
Quick Facts
| Item | What the record shows |
| County | Slope County, North Dakota |
| Fair town | Amidon |
| County seat | Amidon, holding the seat since 1915 |
| Organiser | Slope County Fair Board |
| Grounds | Slope County Fairgrounds, Amidon |
| Season | Late August, across the last full weekend of the month |
| 2026 dates in the county feature | 28 to 30 August 2026 |
| Admission | No current price published in any layer |
| County population | 706 at the 2020 census, the fewest in North Dakota |
A History Carried by Claims
Slope County’s own story begins a few years before the fair’s claimed one. Voters detached the county from Billings County on 3 November 1914, the government was organised on 14 January 1915, and the county took its name from the Missouri Slope. Amidon was organised in 1910 and named for Judge Charles F. Amidon; the county’s own account makes it the temporary seat in 1914 and the confirmed seat by election in 1916, while the state association of counties gives the seat as Amidon’s from 1915. None of that founds the fair, and since the claimed start in 1920 falls after the county’s organisation, no date may be borrowed in either direction.
For a useful comparison, see the Sheridan County North Dakota Fair Festival for another county festival.
For the fair itself, the documented anchors are these. Its board’s 2025 testimony claims an August 1920 beginning, and the county feature of summer 2026 says the debut bill that month included a parade, a rodeo and airplane rides. Farm-press schedules then pick the fair up in print, on 29 to 31 August in 2021 and 26 to 28 August in 2022, each time at Amidon. A regional newsletter photographed rodeo preparations in the week of 23 August 2024, a neighbouring county’s newspaper mentioned the fair being held in Amidon in late August 2025, and the county feature dated the 2026 edition to 28 to 30 August. Between those anchors the arithmetic refuses to settle, with an undated column, a visitor’s review and a festival listing each counting a different total of editions.
What to Expect
A Rodeo at the Centre of the Weekend
The press record binds this fair to its rodeo so tightly that one column bills the whole event as the Slope County Fair and Rodeo, a combined press styling for a fair with its rodeo rather than a second event. Rodeo preparations were photographed at Amidon a week ahead of the 2024 fair. The most telling account is an undated column describing a rainy fair day at Amidon, where the beer garden was the warmest spot available and the fair and the rodeo went on anyway. Every layer that describes this fair in action puts the rodeo at its centre.
Exhibits and Livestock, the 4-H Core
The exhibit side is documented in the same undated column record. One column describes exhibitors lining up their 4-H projects while steers, lambs, hogs, rabbits, chickens and goats were loaded and settled, mothers bringing quilts and garden exhibits into town and white show shirts being washed for the young exhibitors. That is the classic anatomy of a ranch-county fair, and the board’s testimony frames the same core as the stage on which the county’s young people show a year of work. Nothing in the record describes a carnival, a midway, a demolition derby, a concert or a pageant at the modern fair, and none should be expected on the strength of other counties’ programmes.
Eating and Drinking in the Columns’ Account
Food and drink at this fair survive in print as neighbourliness rather than as a schedule. An oil-boom-era column remembers a fair day built around a rodeo, the exhibits, a supper, a community play, a 4-H sale and long stretches of visiting, and it lingers on a supper that fed hundreds of people for whatever donation each person could spare, given to help someone in need. Two separate columns, recorded here unmerged, remember drinks served at the grounds: one credits the fair board at Amidon with serving Bloody Marys, and the rainy-day column puts firefighters serving them at the fairgrounds tent. These undated press memories are the flavour of fair days past, not a programme for any coming year. A single camper’s review adds a modern angle: cornhole games, an auction run by the FFA, and a demonstration in which a steam engine a century old powered a combine while children threw sheaves of wheat onto the conveyor.
Planning Your Visit
Timing the Trip
Plan around the last full weekend of August and verify before travelling. The county feature gives the 2026 fair as 28 to 30 August. The farm-press schedules gave 29 to 31 August in 2021 and 26 to 28 August in 2022, the same late-August shape a year apart. Word of mouth, county channels and regional newspapers are the practical sources for the current year’s exact days.
What a Visit Costs
No layer dated 2024, 2025 or 2026 publishes a gate price, a season pass or a parking charge for this fair, so no current figure can be quoted and the fair must never be assumed to be free. The only priced account belongs to an undated column from the oil-boom years, which says an adult once paid seven dollars for a day that bundled the rodeo, the exhibits, supper, a community play and the 4-H sale into one ticket; that figure describes that column’s era and nothing later. Carry cash and treat any charge on arrival as the current year’s own business.
Staying Over and Finding the Grounds
No camping offer at this fair is documented anywhere: no price, hookup, reservation rule or fair-week arrangement appears in any layer, so camping cannot be described as part of the event. Amidon does have private campground and RV businesses, among them the Cabins of Amidon and the Firehouse RV Park, but those are town concerns with their own terms, entirely separate from the fair. The grounds are the Slope County Fairgrounds at Amidon. No street address for the grounds is published in any fair-side layer; the only address in print comes from a legal notice and a place record, and it is not reproduced here as a verified fair address, so directions are best confirmed in town.
A Sample Fair Weekend
Arrive on the Friday and walk the exhibit entries first, while the livestock pens fill. Give the rodeo the centre of the weekend, since every descriptive layer puts it there, and let the rest arrange itself around judging, visiting and whatever food the grounds offers that year. Spend the remaining time slowly, because with a county this size the crowd is the community itself, and build in slack for weather, since the record contains a fair that simply carried on through rain.
How This Fair Differs From the Standard Template
Set against the usual profile of a North Dakota county fair, the Slope County Fair is at once typical and unusual. The typical part is the substance: a rodeo, judged livestock, 4-H and household exhibits, a sale and a communal supper are the classic ingredients, and all of them appear in this fair’s record. The unusual part is everything around that substance. A fair of this age and claimed standing would ordinarily have a website, a printed premium book and a published gate ladder to point to, and this one has none of those in print; its reputation travels by testimony, newspaper columns and a county feature rather than by its own publicity. A county of 706 people cannot staff the apparatus of a large fair, yet it keeps the core of one running every August.
Visitor Checklist
- Confirm the current year’s exact dates locally before setting out.
- Carry cash for any gate or food charges, as no current prices are published anywhere.
- Pack for late-August prairie weather, including rain, and expect the fair to carry on through it.
- Arrive expecting a rodeo and judged exhibits rather than a midway or carnival.
- Book any overnight stay directly with the town’s private campground or lodging businesses.
- Allow unhurried time for visiting, because the social side of the weekend is half the event.
- Check regional newspapers in August for the year’s arrangements.
- Respect that the fairgrounds are a working community site used all year, not a fenced attraction.
Beyond the Festival Grounds
Amidon itself is the first stop beyond the grounds, a county seat so small that a columnist once called it perhaps the smallest in the nation. The courthouse and county offices anchor the town, and the fairgrounds double as its year-round gathering place, hosting everything from the electric cooperative’s annual meeting down. A visitor layer also notes a one-room schoolhouse exhibit standing across the road from the fairgrounds. Beyond the towns, the county is Missouri Slope ranch country, a landscape of rolling grass, buttes and big skies best taken in on the drives between communities.
Why the Slope County Fair Matters
In a county of 706 people, a fair is not an entertainment product; it is civic infrastructure, as the board’s testimony said when it asked the state to help keep the fairgrounds standing. The fair gives the county’s young people the one public stage their project work ever gets, gives ranch families a fixed point in the calendar between haying and harvest, and gives scattered neighbours a reason to stand in the same place once a year. That a county this small sustains the core of a full county fair at all is the real measure of the event.
Frequently Asked Questions
Where exactly is the Slope County Fair held?
The fair is held at the Slope County Fairgrounds in Amidon, the county seat of Slope County in southwestern North Dakota. Every layer that names a place for the fair names Amidon, and no fair-side street address for the grounds has been published.
Does the fair charge admission?
No current admission price is published in any layer, and the fair should not be assumed to be free. The only priced account is an undated oil-boom-era column in which an adult paid seven dollars for a full day that included the rodeo, the exhibits, supper, a community play and the 4-H sale, a figure that belongs to that column’s time and cannot be carried forward.
Is this really the longest-running county fair in North Dakota?
That is the fair’s own claim, made in its board member’s written testimony to the legislature in January 2025 and repeated in the county’s summer 2026 feature, which dates the claimed beginning to August 1920. Other layers attach different ages and edition counts that do not agree with a straight count from 1920, so the claim is reported here as a claim, not as a settled ranking, and it is not tested against any other county’s rival claim.
Can visitors camp at the fairgrounds during the fair?
No camping at the fair is documented in any published layer, so no fair-week camping can be promised or described. Amidon has private campground and RV businesses that take travellers on their own terms, but they are town businesses, not a fair offer, and arrangements should be checked with them directly.
What to Expect From the Next Slope County Fair Festival
How often is Slope County North Dakota Fair Festival held?
The fair is an annual event, held once a year in Amidon. Documented layers place it in late August in 2021, 2022, 2024, 2025 and 2026, and a festival listing describes the pattern as the last full weekend of August.
When is the next Slope County North Dakota Fair Festival?
The most recent dated layer, the county feature of summer 2026, puts that year’s fair on 28 to 30 August 2026. Beyond that edition, the pattern to plan around is the last full weekend of August, and exact days for any future year should be confirmed through county channels or regional newspapers.
Will the dates change?
The weekend anchor has been steady across every documented year, always the end of August, while the exact days move with the calendar: the farm-press schedules gave 29 to 31 August in 2021 and 26 to 28 August in 2022, and the county feature gave 28 to 30 August in 2026.
Nothing about the Slope County Fair arrives neatly packaged, and that is precisely its character. It is a fair remembered in newspaper columns as suppers, sales and rainy-day rodeos, and dated each year by its county rather than by its own publicity. For a visitor willing to confirm the days locally and arrive without a midway in mind, it offers something rarer than a polished programme: the working fair of the least populous county in North Dakota, still filling its grounds at Amidon every August.
