The Larimer-Weld County Line: Which Rules Apply to You

There is a county line running through the middle of this town, and it decides who you call.

That is not a figure of speech and it is not a technicality. Two houses in Johnstown, a mile apart, with the same ZIP code and the same mailing address format, can answer to two different county governments — two building departments, two road departments, two right-of-way desks, two assessors, two sheriffs, two sets of disposal facilities and two different answers to “who enforces the fire code here.”

Every national dumpster site treats this market as one place with one set of rules. It is not. This page is the thing they cannot write.

First, the fact that surprises almost everybody: Kelim is in Larimer County

Kelim is an unincorporated community sitting at 40.40665 north, 104.95081 west, elevation 4,938 feet, and it is in Larimer County. Not Weld. The Census geocoder, run against those coordinates, returns Larimer County and no incorporated place — the point is in unincorporated territory. And Weld County’s own official list of its unincorporated communities — Barnesville, Briggsdale, Buckingham, Camfield, Carr, Cornish, Dover, Galeton, Gill, Gowanda, Hardin, Hereford, Keota, Kuner, Lucerne, Purcell, Puritan, Roggen, Stoneham, Vollmar, Wattenburg — does not include Kelim.

The confusion is completely understandable, because the mailing address says Johnstown and Johnstown reads as a Weld County town. Which brings us to the second fact.

Johnstown is in both counties

Johnstown is a home rule town straddling Weld and Larimer counties. It was founded in 1902 by Harvey J. Parish, who had homesteaded about eighty acres between the Big Thompson and the Little Thompson rivers, and it incorporated on 13 May 1907.

The split runs, in practical terms, like this:

• The Weld County side — historic downtown, the old grid, Main Street, Parish Avenue. Town Hall itself, at 450 S. Parish Avenue, is on the Weld side. This is the Great Western Sugar and Carnation condensed milk town, the one with the barium sugar plant the county’s own history calls the only one of its kind in the world.
• The Larimer County side — the entire I-25 corridor. The 2534 development, Ledge Rock Center, the US-34 and Colorado 60 interchanges, the frontage roads, and Kelim.

We are not going to tell you which road the line follows, because we could not verify a boundary alignment from an authoritative source and a wrong answer here is worse than no answer. What is verified, and what matters, is that the split exists and that it runs roughly between the interstate corridor and old-town Johnstown. If your address is on the I-25 side, plan on Larimer. If it is in the old grid, plan on Weld. If it is anywhere near the middle, ask — and ask the county, not us.

And it is not just Johnstown

This is where the market stops being a curiosity and becomes a structural feature. Five municipalities in this service area straddle county lines:

• Johnstown — home rule, Weld and Larimer
• Windsor — home rule, Weld and Larimer
• Berthoud — statutory, Larimer and Weld
• Erie — home rule, Weld and Boulder
• Longmont — home rule, mostly Boulder with a Weld portion

Lochbuie, further south, straddles Weld and Adams. That is genuinely unusual. Most metropolitan areas have one or two boundary oddities; this one has five of them inside a thirty-mile straight-line radius of our yard — straight-line, not driving distance — and they are among the fastest-growing places in Colorado.

Home rule or statutory — the distinction that predicts who has rules

Colorado municipalities come in two forms, and the difference is not academic.

A home rule municipality draws its powers from its own charter under Article XX of the Colorado Constitution and may legislate in local matters beyond what state statute prescribes. In this service area that includes Johnstown, Windsor, Loveland, Timnath, Fort Collins, Greeley, Evans, Erie and Longmont.

A statutory town operates under state statute. That includes Milliken, Berthoud, Mead, Severance, La Salle, Platteville, Gilcrest, Eaton and Ault.

The practical consequence: home rule towns are the ones most likely to have their own container ordinances, their own hauler licensing and their own right-of-way permits — as Johnstown does, in a code section literally titled Dumpsters. That is why anything written about permits in this market has to be town by town rather than county wide, and it is why we will not tell you that Berthoud works like Johnstown. Berthoud is a statutory town, primarily in a different county, with its own code and its own fire district.

What actually changes when you cross the line

1. The building department, and the code package

Colorado has no statewide residential building code. Adoption is local, and here the packages and the dates differ:

• Town of Johnstown — Chapter 18 adopts the 2024 IRC and a full 2024 package including the 2024 International Fire Code.
• Weld County (unincorporated) — 2024 I-Codes with the 2023 NEC, effective 15 June 2026, and no fire code.
• Larimer County (unincorporated) — 2024 I-Codes with the 2025 NEC and the 2025 Colorado Wildfire Resiliency Code, effective 1 January 2026. Larimer also notes that structures built after 1 January 1972 required a building permit, except as noted.

Weld County Building: 1150 O Street, Greeley, (970) 400-4000, weld.gov. Larimer County Community Development: 200 W. Oak Street, Fort Collins, (970) 498-7000, larimer.gov.

2. The fire code — and this is the biggest one

Unincorporated Weld County enforces no fire code at all. The county’s building ordinance states it in a single sentence: “The provisions of the International Fire Code shall apply only when adopted by a local fire district and shall not be enforced under this Building Code.”

That is why the county’s adopted-codes list contains no IFC. Out in unincorporated Weld County, the fire code that applies to you is whatever your fire protection district has adopted — and district boundaries do not follow municipal or county boundaries. For a rural container question out there, the county building department is simply the wrong number.

For Johnstown, Milliken and Weld County, the district is Front Range Fire Rescue, 970-587-4464, whose Life Safety Division covers exactly those areas.

The one thing that does not vary: the container separation. The 2024 IFC adopted by Johnstown bars dumpsters of 1.5 cubic yards or more from being placed within five feet of combustible walls, openings or combustible roof eave lines, and applies the same five-foot rule at 1.0 cubic yard with a noncombustible exception. Front Range Fire Rescue has published guidance under the 2018 edition; the five-foot separation is the same in both, and neither the Town nor the district amended that section. Five feet, always.

3. The right-of-way desk

Three governments, three answers, and the address decides which one you get.

Inside the Town of Johnstown — the Town’s code governs on both sides of the county line, because it is one town. § 7-35: no person shall place, store or maintain a dumpster on any public property unless expressly authorized in writing by the Town, and placement in violation is considered a nuisance. § 11-23: work of any kind in the public right-of-way requires a Town right-of-way permit. § 11-25: the fee is set by resolution of the Town Council. Town Hall, 970-587-4664, johnstownco.gov, code at ecode360.

Unincorporated Weld County — Weld County Public Works, (970) 400-4000. The county states that all construction activities within county rights-of-way, gravel or paved, and including public drainage easements, need permits, and describes the covered activity as including occupation of those rights-of-way. The county’s page does not name dumpsters, so we will not tell you it requires a permit for one — only that the language is broad and a call is warranted.

Unincorporated Larimer County — Larimer County Engineering, (970) 498-5709. Larimer issues right-of-way construction, access, special transport and floodplain permits, all quoting ten business days. Its published documentation does not address container placement in the right-of-way in either direction. So: here is the number, and we claim nothing beyond it.

The universally safe line, and it covers most residential jobs: on private property — a driveway, a yard, a parking lot — no right-of-way permit is in play at all. Full detail in our permits guide.

4. Where the load goes

Neither county collects residential waste, but they run entirely different facilities.

Weld County operates two household hazardous waste facilities, free to Weld County residents: 1311 North 17th Avenue in Greeley and 5500 Highway 52 in Dacono, (970) 400-2217, with limits of 200 pounds per household per visit, nothing over five gallons, nothing in plastic bags, and no electronics or appliances. It also runs a seasonal large item disposal voucher — one truckload level with the bed rails or one trailer up to one ton, free, one per Weld County address, at participating landfills.

Larimer County operates the Central Diversion and Transfer Station, 2388 W. Trilby Road, Fort Collins, (970) 498-5772. The old landfill on South Taft Hill Road is closed to general waste disposal, and a new county landfill at 15669 North County Road 9 in Wellington opened on 3 August 2026 serving commercial haulers and the Wellington area.

A Kelim resident is a Larimer County resident, and that is not intuitive when the mail says Johnstown. Our disposal rules guide has the full picture, including what the private landfills accept and refuse.

5. Everything else with a county seal on it

The assessor who values the property. The clerk who records the deed. The sheriff who responds outside town limits. The road department that maintains the county road and decides whether a loaded truck can use it in spring. All of them change at that line.

What does not change

One thing, and it is a useful one. Both counties publish a 30-inch frost line. Weld County’s design criteria list a 30-inch frost line depth for residential and commercial work; Larimer County states a 30-inch minimum frost depth countywide. Two counties, two methods, the same number.

That is why footings, water services and sewer laterals go deep here regardless of which side you are on, why trenches produce more spoil than newcomers expect, and why basements are ordinary in this market. Our sizing guide works through what that does to a container estimate.

What does change that people assume does not

Structural design figures are not uniform, and they should never be blended. Weld County publishes a flat 30 psf ground snow load and a 115 mph basic residential wind speed. Larimer County publishes ground snow load varying by elevation — 55 psf at 5,000 feet — and site-specific basic wind speeds from 115 to 225 mph. Kelim sits at 4,938 feet, right at the bottom of the Larimer scale. Same ground, different counties, different methods, different numbers. Attribute each to its county and never split the difference.

The three places with no town desk at all

Three communities in this service area are unincorporated, which means there is no town hall, no municipal code and no municipal permit desk for those addresses — the county is the authority for everything:

• Kelim — Larimer County. Named for early settler Lee J. Kelim; a post office operated there from 1915 to 1925. It has never had a government of its own.
• Lucerne — Weld County, and on the county’s own official list.
• Gill — Weld County, likewise.

Why we ask for the address and not the town

Because in this market the mailing address is not the jurisdiction. ZIP 80534 covers town and unincorporated ground in more than one county, and a Johnstown mailing address tells you almost nothing about who issues a permit for the street outside.

So when you call, the first thing we ask is the address. Not to be difficult — because it is genuinely the fastest route to a correct answer about which building department, which road department, which fire district and which set of facilities your job belongs to. Two customers a mile apart get two different answers here, and telling you so is not a hedge. It is the single most useful thing anybody in this market can tell you.

The numbers, in one place

• Town of Johnstown — 450 S. Parish Avenue — 970-587-4664
• Weld County (main, building, public works) — 1150 O Street, Greeley — (970) 400-4000
• Larimer County (main) — 200 W. Oak Street, Fort Collins — (970) 498-7000
• Larimer County Engineering — (970) 498-5709
• Front Range Fire Rescue — 970-587-4464
• Weld County household hazardous waste — (970) 400-2217
• Larimer County Central Diversion and Transfer Station — (970) 498-5772
• Colorado 811 — 811 or 800-922-1987, two business days, white-line first

What we will not tell you

Three things, deliberately.

We will not tell you exactly where the county line runs, because we could not verify an authoritative boundary alignment and a confident wrong answer would be worse than none. We will not tell you that another town’s rules match Johnstown’s, because we have verified Johnstown’s code verbatim and have not verified anybody else’s. And we will not tell you that Weld County requires a permit for a container in its right-of-way, because its published page covers occupation of the right-of-way without naming containers.

“We could not find one” is not the same as “there is none,” and saying so is worth more to you than a confident guess.

We have been running containers out of our yard on the Kelim frontage road since 2013, on both sides of that line. Tell us the address and we will tell you which county you are actually in. Call HJP Dumpster Rental at (970) 427-0341. Service areas · sizes · FAQ.