Clinton County at a Glance
Clinton County’s 2020 Census population of 46,460 has held essentially flat since — the county’s 2024 Census Bureau estimate came in at 46,268, and 2026 vintage projections put it near 46,015, a gentle decline rather than the fast growth seen elsewhere in Iowa. Clinton has served as the county seat since Clinton County was organized on December 21, 1837, and it’s also the county’s largest city — one of the relatively few Iowa counties where the seat and the biggest community are the exact same place. There’s no ambiguity to sort out, either: this is the only Clinton in Iowa, and Clinton County is named for DeWitt Clinton, the New York governor and driving force behind the Erie Canal, not for anyone from Iowa. The county covers about 710 square miles of eastern Iowa river-bluff country (695 square miles of land, 15 of water), bordered by Jackson County to the north, Scott County to the south, Cedar County to the southwest, and Jones County to the northwest — plus, directly across the Mississippi River, Carroll, Whiteside, and Rock Island counties in Illinois. That makes Clinton County one of a smaller group of Iowa counties that borders another state outright, not just another county.
The county’s defining history runs through timber, not farmland. Between the 1850s and 1900, Clinton and the neighboring river town of Lyons were widely known as part of the “Lumber Capital of the World,” and by the 1880s and 1890s Clinton reportedly had more millionaires per capita than any other city in the nation, fortunes built on log rafts floated down the Mississippi from Wisconsin and Minnesota forests. That boom collapsed by 1900 as the northern timber supply ran out, but its legacy is still visible: the county’s Romanesque-style courthouse, opened in 1897, remains in use today. The river has kept shaping the county since — a 1965 flood crested at 24.85 feet, prompting a U.S. Army Corps of Engineers levee project that wrapped up in 1981 and still protects the Clinton riverfront. That same Mississippi River geography — flat terrain, mature tree cover, a mix of pre-1900 riverfront homes and newer rural acreages — is exactly the kind of housing stock SolQ designs solar systems around every day.
Cities & Towns We Serve in Clinton County
Three Clinton County communities already have their own dedicated SolQ page with local pricing, utility, and permitting detail. Tap a city below for the full picture, or keep reading — this page exists specifically to give you the countywide overview and cover the smaller communities in between.
Clinton · pop. ~24,469 · county seat & largest city
Iowa’s easternmost city, anchored by ADM’s major Mississippi River corn-processing complex and the historic riverfront near Eagle Point Park. On Alliant Energy’s grid, with 29 completed SolQ installs on record.
De Witt · pop. ~5,514
A Central Community School District town about 16 miles west of Clinton via US-30, and the seat of the county’s second live SolQ market. On Alliant Energy’s grid, with 18 completed SolQ installs on record.
Camanche · pop. ~4,570
A Mississippi River town founded in 1818, about 6 miles west of Clinton via US-67, home to manufacturers Clysar, Wendling Quarries, and Merrill Steel. Electric service genuinely splits three ways here between MidAmerican Energy, Eastern Iowa Light & Power, and Alliant Energy.
Also Serving Clinton County’s Smaller Communities
Clinton County is home to a number of smaller incorporated towns that don’t (yet) have their own dedicated SolQ page, but we install there too: Grand Mound, Low Moor, Charlotte, Wheatland, and Delmar, plus the unincorporated stretches of the county along the Mississippi River and the farm ground between them. If you live in one of these towns, or anywhere else in Clinton County, the FAQ below explains how coverage and utility service work for you.
Electric Utilities Serving Clinton County
Clinton County runs on a genuine four-way utility mix, and findenergy.com’s territory data backs up exactly what our own Clinton, De Witt, and Camanche pages already say: Alliant Energy is the biggest single provider, but it isn’t the whole story.
Alliant Energy
The county’s dominant utility, with an estimated 8,567 Clinton County customers per findenergy.com’s utility-territory data. Serves Clinton and De Witt in full, plus a smaller remaining slice (roughly 9%) of Camanche. Solar exports are credited under an inflow-outflow rate, or a net-metering pilot for qualifying accounts. Full detail on our dedicated Alliant Energy solar page.
Eastern Iowa Light & Power
A member-owned electric cooperative headquartered in Wilton, with an estimated 5,908 Clinton County customers. Covers a substantial share of Camanche (roughly 40%, per findenergy.com’s Clinton County breakdown) and rural areas around the city. Doesn’t publish a single public crediting rate we can quote for every home, so SolQ confirms exact interconnection terms directly with the co-op for each address.
MidAmerican Energy
An estimated 1,444 Clinton County customers per findenergy.com, concentrated in Camanche, where it serves the largest single share of the city (roughly 52%). Exports are credited under MidAmerican’s Rate IO inflow-outflow tariff. Full detail on our dedicated MidAmerican Energy solar page.
Maquoketa Valley Electric Cooperative
A much smaller rural electric cooperative headquartered in Anamosa, Jones County, with an estimated 71 Clinton County customers per findenergy.com — a minority provider reaching a small slice of the county’s northwestern edge near the Jones County line. Real, but easy to overlook if you only ask about the three bigger providers.
We haven’t found a published utility assignment for every small Clinton County community or rural route — for those, and for any address near a utility boundary, SolQ confirms your exact provider and crediting terms before you sign anything.
Real SolQ Installs in Clinton County
We’ll be upfront about where our completed-project records actually stand in Clinton County: SolQ has 29 completed residential installs in Clinton, ranging 2.4–14.9 kW (7.4 kW median), all on Alliant Energy’s grid, on streets including North 10th Street, 15th Avenue South, Crestline Drive, 13th Avenue North, and North 8th Street. In De Witt, we have 18 completed installs, ranging 5.6–15.0 kW (8.2 kW median), also on Alliant Energy, on streets including Mackin Drive, 9th Avenue, Northridge Road, 11th Avenue, and 244th Street. Camanche is a market SolQ is actively expanding into — we don’t yet have a completed install on record specifically inside Camanche’s city limits, and we’re not going to pretend otherwise by inflating the number. What backs every Clinton County project, including the next one in Camanche, is a real, verified track record across the rest of the state: 1,179 completed residential solar installs across Iowa overall, under the same Alliant Energy, MidAmerican Energy, and cooperative crediting rules that apply across Clinton County addresses. As we complete more Camanche-area projects, this section will be updated with real, address-level detail, the same way it already is for Clinton and De Witt.
Why Clinton County Homeowners Choose SolQ
Three Cities, One Point of Contact
Most solar installers treat a county as one undifferentiated market. Clinton County has three live SolQ city pages because we build local pricing, permitting, and utility detail for Clinton, De Witt, and Camanche individually, not one generic template.
River-Adjacent Permitting
Clinton, De Witt, and Camanche each run their own permitting process, and Clinton County sits directly across the Mississippi from three Illinois counties. We manage that paperwork per parcel, confirming which city, county, and utility rules actually apply to your address.
Real Iowa Track Record
1,179 completed Iowa installs and counting, including 47 combined in Clinton and De Witt alone, a 4.8-star Google rating across 413 reviews, an A+ BBB rating, and EnergySage’s 2026 Local Installer of the Year award.
Iowa Solar Tax Benefits
Iowa’s state income-tax credit for residential solar isn’t available for systems installed after 2021. Here’s what Clinton County homeowners can actually count on today.
5-Year Property-Tax Exemption
The added home value from your solar system is exempt from property tax assessment for five years after installation.
Sales-Tax Exemption
Qualifying solar equipment is exempt from Iowa sales tax. Labor is still taxable, so we break out real numbers up front.
Utility-Specific Crediting
Alliant Energy’s inflow-outflow rate, MidAmerican’s Rate IO, and Eastern Iowa Light & Power’s cooperative terms all credit solar exports differently — we confirm which applies to your exact address.
Clinton County Solar FAQ
Does SolQ serve all of Clinton County, or just the city of Clinton?
Yes, all of it. Clinton is our most established Clinton County market and the county seat, but SolQ installs residential solar throughout the county: De Witt, Camanche, and every smaller Clinton County town in between. This page exists specifically to cover the whole county in one place, not just the biggest city.
Does SolQ have dedicated pages for Clinton, De Witt, and Camanche too?
Yes. Clinton, De Witt, and Camanche each have their own dedicated SolQ page with city-specific pricing, utility, and permitting detail. This county page is the place to start if you’re not sure which city page applies to you, or if you live in one of the smaller communities.
What if my town isn’t listed here by name?
If you live anywhere inside Clinton County’s borders, we almost certainly serve you. We named every Clinton County community we could confirm on this page, including smaller towns like Grand Mound, Low Moor, Charlotte, Wheatland, and Delmar, but unincorporated addresses and rural routes are covered too. Reach out and we’ll confirm coverage, utility, and crediting terms for your specific address before you commit to anything.
What electric utility serves my home in Clinton County?
It depends on your address. Alliant Energy is the county’s biggest provider by far, serving Clinton and De Witt in full plus a small slice of Camanche. MidAmerican Energy and Eastern Iowa Light & Power split most of the rest of Camanche between them, and Maquoketa Valley Electric Cooperative reaches a small slice of the county’s northwestern edge near the Jones County line. We confirm your exact provider before designing your system.
How does Alliant Energy credit my solar production in Clinton County?
Alliant credits solar production through an inflow-outflow rate: power you pull from the grid is billed at your normal rate, and power you export is credited separately at Alliant’s approved energy credit rate, with a net-metering pilot available for some qualifying accounts. SolQ checks the exact terms on your account before you sign anything, and has a dedicated page walking through Alliant’s rules in full if you want the details.
What about MidAmerican Energy and Eastern Iowa Light & Power?
They’re real, and concentrated mainly in Camanche, where electric service genuinely splits three ways. MidAmerican Energy serves roughly 52% of Camanche and credits exports under its Rate IO inflow-outflow tariff. Eastern Iowa Light & Power, a member-owned cooperative headquartered in Wilton, serves roughly 40% of Camanche and doesn’t publish a single public crediting rate, so SolQ confirms exact terms with the co-op directly for each address.
Is there a fourth electric provider in Clinton County?
Yes, though it’s easy to miss. Maquoketa Valley Electric Cooperative, headquartered in Anamosa in neighboring Jones County, serves an estimated 71 Clinton County customers per findenergy.com, a small slice of the county’s northwestern edge. It’s a minor provider next to Alliant Energy, MidAmerican Energy, and Eastern Iowa Light & Power, but it’s a real one, and we confirm it when it applies to your address.
Has SolQ actually completed solar installs in Clinton County?
Yes, in Clinton and De Witt. We have 29 completed residential installs on record in Clinton, ranging 2.4-14.9 kW, and 18 in De Witt, ranging 5.6-15.0 kW, both entirely on Alliant Energy’s grid. We don’t yet have a completed install specifically inside Camanche’s city limits, and we say so directly rather than implying otherwise. What backs every Clinton County project is the same track record behind our 1,179 completed Iowa installs statewide.
Isn’t the city of Clinton the same thing as Clinton County?
Close, but not quite. Clinton is a city of about 24,469 people, and Clinton County is the larger 710-square-mile county it sits inside, with a total population of 46,460. Clinton happens to be both the county seat and the county’s largest city, which is unusual (most Iowa counties have a smaller seat), but this page covers the whole county, including De Witt, Camanche, and the smaller towns around them, not just the city of Clinton.
What’s the story behind Clinton’s lumber history, and does it affect solar installs today?
Between the 1850s and 1900, Clinton and neighboring Lyons were part of what was widely called the Lumber Capital of the World, with fortunes built on Mississippi River log rafts and, by the 1880s and 1890s, reportedly more millionaires per capita than any other American city. That boom left behind a genuine mix of older riverfront homes alongside newer construction throughout the county. SolQ assesses roof age, condition, and structure on every project, whether it’s a home built during the lumber era or a new build in De Witt or Camanche.
Is Iowa’s state solar tax credit still available in Clinton County?
No. Iowa’s state income-tax credit for residential solar isn’t available for systems installed after 2021. Two state benefits still apply regardless: a 5-year property-tax exemption on the added home value from your system, and a sales-tax exemption on qualifying solar equipment (labor is still taxable).
What about the federal solar tax credit?
If you’re buying your system outright through cash or a loan, the federal Residential Clean Energy Credit (Section 25D) ended for systems placed in service after December 31, 2025, under the One Big Beautiful Bill Act signed in July 2025. If you go with a Lease or PPA instead, the benefit is still built in indirectly: our financing partner owns the system and claims a separate federal credit for commercial-owned solar (Section 48E, active for projects that begin construction by July 4, 2026, or are placed in service by December 31, 2027), which is part of how they can offer $0-down payments below what you’re currently paying your utility. We’ll walk you through exactly what applies to you during your free consultation.
Are there Clinton County-specific permitting requirements?
Yes, and they vary by municipality. Clinton, De Witt, and Camanche each run their own permitting process, separate from Clinton County’s own rules for unincorporated areas. We handle the paperwork with your specific city or the county, and file the interconnection application with your utility, so you don’t have to sort out which office to call.
How long does a Clinton County solar installation take, start to finish?
Many projects are installed in as soon as 30 days. Some take longer, up to 2-3 months, depending on your municipality’s permitting timeline and your utility’s interconnection queue. We give you a realistic timeline for your specific address up front.
Built for Clinton County
Whether you’re in Clinton, De Witt, Camanche, or a smaller Clinton County town like Charlotte or Grand Mound, SolQ designs your system around your actual roof, your actual utility, and Iowa’s actual winters — not a generic template.
Get My Free Solar AnalysisSolQ is an independent solar provider and is not affiliated with Alliant Energy, MidAmerican Energy, Eastern Iowa Light & Power, Maquoketa Valley Electric Cooperative, or any government agency. Savings figures shown are estimates, not guarantees. Financing offered through third-party partners; terms subject to partner approval. Tax exemptions subject to Iowa law; consult a tax professional for your specific situation. Verified as of August 2026.
