With 72,561 residents, St. Charles ranks 8th in population among the 936 cities and towns of Missouri. Web design in St. Charles is less about decoration than about being clear. A small business website in St. Charles can start without a big invoice: Aria builds it for $89 a month, domain and email included, and bills the first month only after your approval.

No setup fee: you only pay the $89 monthly fee, after you approve your website.

Why a St. Charles website can’t be generic

The county government of St. Charles County sits in St. Charles; county business brings people into town every weekday. St. Charles County counted 426,499 residents in 2025, spread over 17 municipalities. Visitors who come in for county business often need something else while they are here: lunch, a copy shop, a notary, a mechanic. A page listing the towns you cover helps the people who come in from outside St. Charles. Most of this is written once and kept current, which is precisely what the monthly changes by email are for.

Remote work is common in St. Charles: 18.0% of employed residents work from home. Home workers can meet a contractor at 2 p.m., and they expect quick answers in writing. A detailed contact form works for customers who live on email.

St. Charles is on Interstate 70, so some of the people looking for food, fuel, lodging and repairs are just passing through. Travelers search from the road, want an answer in seconds and rarely call to ask whether you are open. A page with the services, the hours and a map is what a traveler needs. That is the work a small business website does well: answering the first questions before anyone has to ask.

Hot months, wet months: St. Charles through the year

Climate normals for 1991-2020 from St. Charles Elm Point, 1.3 miles away, put the July average high at 88°F and the January average low at 22°F. About 46 inches of rain and melted snow fall in a normal year, most of it in May. About 34 days a year hit 90°F or more. Winter changes what people need: snow removal, heating and ice-dam repairs in the cold months, landscaping and outdoor work the rest of the year. Update the homepage before your busy season: send the changes by email a few weeks ahead.

Census facts about St. Charles

72,561People (2025 estimate)Census Bureau estimate
+2.4%Population change since 2020Missouri: +1.9%
$85,937Household income, medianMissouri: $70,702
38.6Median age of residentsMissouri: 39.0
94.6%Households with a broadband planMissouri: 89.3%
1,368Businesses with employees in local ZIP codesZIP Code Business Patterns 2023

A typical home here is worth $298,700; the median rent is $1,251 (Missouri medians: $230,300 and $1,033). St. Charles counts 30,362 households; 68.0% own their home. The median household income in St. Charles is $85,937, about 22% above the Missouri median of $70,702.

A city that keeps changing

St. Charles gained 1,720 residents between July 2020 and July 2025. Missouri as a whole changed +1.9% in the same period. Growth like this brings new households that look for local services online before they ask a neighbor.

Reading the St. Charles customer

94.6% of households have a broadband subscription. Online research comes before the phone call.

St. Charles County had 426,499 residents in 2025 and 17 incorporated municipalities. Small-town survey numbers are uncertain, so here is St. Charles County as a whole: households have a median income of $104,692, and half the residents are older than 39.8. 95.1% of households have broadband and 7.1% rely on a cellphone data plan alone. 80.5% of households own their home.

Getting to and around St. Charles

The closest municipalities to St. Charles are Champ (4.8 miles southeast), St. Peters (4.9 miles west), Bridgeton (5.5 miles east), Maryland Heights (5.9 miles southeast) and Hazelwood (6.4 miles east). The city spreads over 25.2 square miles of land and 0.5 square miles of water, with roughly 2,875 people per square mile. St. Louis Lambert International Airport (STL) is 8.9 miles east of St. Charles in a straight line. A 25-mile radius around St. Charles takes in 133 other municipalities. St. Louis, a city of 278,144, is 18 miles southeast. List the towns you actually serve, such as Maryland Heights and St. Peters, on your website; customers outside St. Charles want to know before they call.

Who you compete with in St. Charles

ZIP code 63301, which covers St. Charles and the area around it, had 1,368 business establishments with employees in 2023. Here is part of that mix, with what each website should show:

  • Boat dealers: 5. Their website should show the brands you carry, service and storage information and a contact form.
  • Full-service restaurants: 62. Their website should show a menu page you can update by email, your hours and a map, plus a contact form for events and large groups.
  • Marinas: 8. Their website should show slips, services, fuel dock hours and a map, with a contact form for availability.
  • Law offices: 58. Their website should show plain-language pages about the cases you take, office location and a confidential contact form.

In St. Charles County, the Census counted 8,946 businesses with employees and 32,540 without a payroll in 2023; the second group is where a simple, affordable website changes the most. St. Charles County has 1.5 times the national share of insurance agencies: 267 of them in the 2023 count. In that line of work, people compare agents before a renewal or a big purchase, so the website should show the lines you write, the carriers you represent and a quote request form. Recreation and amusement businesses are also overrepresented (144, 1.5 times the national share).

How a website for $89 a month works

Aria is a web design company from Curitiba, Brazil, working since 2008. We don’t have an office in St. Charles: the whole process happens online, and the plan is the same $89 a month in any city.

  1. Start with the online sign-up, which takes about 5 minutes, and send your material by email.
  2. We build it with your brand on a proven professional template and send a temporary link within 5 business days.
  3. Approve it: the first monthly fee is issued and your domain starts showing the new site.

After launch, changes to text, photos and prices are requested by email and are part of the monthly fee; quick questions go by email too.

Plan$89/monthNo setup fee: you only pay the $89 monthly fee, after you approve your website. No lock-in contract.
  • Business website or online store, same price
  • Your domain, registered and renewed by us (or the one you already have)
  • Business email on your domain: 5 GB, webmail and spam filtering
  • Hosting, SSL certificate and daily backups
  • Changes to text, photos and prices, requested by email
  • Ready within 5 business days on a temporary link
I want the $89 plan

Before you publish: Missouri and federal rules

Before your website goes live, it helps to have the basics of the business in order.

  • Under the Americans with Disabilities Act, businesses open to the public must make their goods and services accessible to people with disabilities, and the Justice Department’s guidance says that includes their websites. ADA.gov guidance
  • A federal rule (16 CFR Part 465) makes it unlawful to write, buy or sell fake reviews and testimonials, so the reviews on a business website have to be real. 16 CFR Part 465

This is general information, not legal advice; check with the Missouri agencies, St. Charles County, the city of St. Charles or an attorney.

Before you sign up: questions from St. Charles

My business is in St. Charles, but I also work in Hazelwood. Can the website show that?

Yes. Send the list of towns you serve by email (Hazelwood, Champ, Bridgeton or any others) and the website gets a service area page with all of them.

Travelers find me from Interstate 70. Can the website help them?

Yes. Directions from Interstate 70, current hours and a map with your address fit on the contact page.

Can I sell online from St. Charles?

Yes, for the same $89 a month: catalog, cart and online payment. Remember that sales tax applies; Missouri’s state rate is 4.2%, and local taxes may apply.

Do you work with businesses outside St. Charles?

Yes. A service area page can cover every part of St. Charles County you serve.

Is there a setup fee?

No. No setup fee: you only pay the $89 monthly fee, after you approve your website. There is no lock-in contract either: you can end the service whenever you need.

Your St. Charles website, domain and email in one plan

About 5 minutes to sign up, a temporary link within 5 business days, and no payment until you approve.

Start my sign-up
Sources for the numbers on this page
  • U.S. Census Bureau: Vintage 2025 population estimates; American Community Survey 2020-2024 (5-year), county figures where the town estimate is too uncertain; ZIP Code and County Business Patterns 2023; Nonemployer Statistics 2023; 2025 Gazetteer (straight-line distances).
  • Climate: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (station USC00237397).
  • Highways: U.S. Census Bureau TIGER/Line 2024 primary roads and 2024 cartographic boundary files.
  • Founding year, nickname, elevation, waters, colleges, hospitals, airports and parks: Wikidata (item Q773432), retrieved on October 30, 2026; distances are straight-line.
  • Rules for Missouri businesses: official sources linked above, checked on October 30, 2026. County seat: USGS National Atlas.