The city of Mackay had 480 residents in 2025, in Custer County, Idaho. For web design in Mackay, the aim is plain: be found, be understood, be contacted. Aria builds small business websites for Mackay companies for $89 a month, with the domain, business email and hosting included, and you only pay after you approve the website.

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

Mackay on the map

The closest municipalities to Mackay are Moore (17 miles southeast), Arco (25 miles southeast), Butte City (28 miles southeast) and Sun Valley (39 miles southwest). The county seat, Challis, is 51 miles northwest. The nearest large city is Idaho Falls, 84 miles to the east. With 554 residents per square mile on 0.9 square miles of land, Mackay is moderately dense by Idaho standards. The city lies at an elevation of about 5,906 feet. If you serve more than one town, your website can have a service area page that names each of them, so a customer in Arco or Sun Valley sees right away that you cover them.

The nearest NOAA station with 1991-2020 climate normals, Mackay Lost Rvr Rs, is 0.4 miles from Mackay. It records an average high of 83°F in July and an average low of 8°F in January. About 10 inches of rain and melted snow fall in a normal year, most of it in June. Freezing nights (32°F or below) come about 202 times a year. Winter reshuffles demand: snow removal, heating and ice-dam repairs in the cold months, yard work and construction once it thaws. Update the homepage before your busy season: a short email with the new text is all it takes.

Mackay in figures

480Residents in 2025Census Bureau estimate
+8.6%Growth since 2020Idaho: +10.4%
61.7Median ageIdaho: 37.3
41Employer establishments, local ZIPsZIP Code Business Patterns 2023

Mackay’s median age of 61.7 compares with 37.3 across Idaho.

Net growth since 2020 38 more residents (8.6%). Idaho as a whole changed +10.4% in the same period. Growth like this brings new households that look for local services online before they ask a neighbor.

Who you compete with in Mackay

Mackay shares ZIP code 83251 with the surrounding area, where 41 employer businesses were counted in 2023. Some of the local businesses in that count:

  • Full-service restaurants: 3. Their website should show the current menu with prices, hours, the address with a map and photos of real dishes.

County-wide, Custer County counts 192 businesses with employees and 504 self-employed or nonemployer businesses (2023). One sector stands out in Custer County: hotels, inns and other lodging, with 16 establishments and far more than the national share. What their websites need: rooms with real photos, amenities, location and how to reserve by email or through your booking channel. Every one of them is a search away from a customer in Mackay.

Who your website talks to in Mackay

Children under 5 are 9.0% of the population, a sign of many young families. Parents of small children plan around naps and pickups; hours and prices on the first screen save them a call.

Custer County: 4,636 residents (2025) in 4 incorporated places. For a city as small as Mackay, the county figures are more reliable: broadband reaches 85.9% of homes, and 11.5% of households are online only through a phone plan. 76.8% of households own their home.

The legal basics for Mackay businesses online

A few rules apply to any Mackay business that sells or advertises online:

  • Idaho assumed business names (DBAs) are filed with the Secretary of State, and an assumed business name cannot act as the registered agent. Official source

This is general information, not legal advice. Your county, your city hall or an attorney can confirm what applies to you.

Your website for $89 a month, step by step

Aria is a web design company based in Curitiba, Brazil, building websites, online stores and business email since 2008. There is no Aria office in Mackay, and you don’t need one: sign-up, material and approval all happen online.

  1. The sign-up at cadastro.ariaserv.com/en takes about 5 minutes; your logo and photos go by email.
  2. Your website is ready within 5 business days on a temporary link, so you can check every page before anything is published.
  3. Ask for adjustments by email, approve, and after the first monthly fee the site goes live on your domain.

Changes after launch go by email and are included, and so do quick questions.

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 sign up: questions from Mackay

Is a website worth it for a business in a city of 480 people?

Your market is bigger than the city: Custer County has 504 nonemployer businesses and 192 with employees (2023), and customers search across the whole area. A website is how people outside Mackay find you.

Will someone from Aria visit my business in Mackay?

No visits: Aria works remotely from Curitiba, Brazil. You send your logo, photos and texts by email, and approve the website on a temporary link.

Can the website mention Butte City, Moore and the other towns I cover?

Yes. List Butte City, Moore, Sun Valley or any other place you work on a service area page, and every page keeps the contact form.

My customers come from all over Custer County. Can the website say that?

Yes. A service area page can cover every part of Custer 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.

A professional website for your Mackay business

No setup fee, no lock-in contract: you see the finished website first and pay the first month only if you approve it.

Start my sign-up
Sources for the numbers on this page
  • Numbers for Mackay come from the U.S. Census Bureau: 2025 population estimates (Vintage 2025), the 2020-2024 American Community Survey (5-year), county figures where the town estimate is too uncertain, County and ZIP Code Business Patterns 2023, Nonemployer Statistics 2023 and the 2025 Gazetteer for straight-line distances.
  • Climate: NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020 (station USC00105462).
  • Founding year, nickname, elevation, waters, colleges, hospitals, airports and parks: Wikidata (item Q1515321), retrieved on October 30, 2026; distances are straight-line.
  • The Idaho rules come from the official sources linked in that section (checked October 30, 2026); county seats from the USGS National Atlas.