As the county seat of Contra Costa County, Martinez is home to the county government and 36,849 residents. Web design in Martinez should be simple: services, location and a way to get in touch. If you run a business in Martinez, Aria can put a professional website online for $89 a month, with domain, email and hosting included and no setup fee; the first payment comes only after you approve it.

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

A small business website that fits Martinez

Martinez sits 6.4 miles east of Concord, and 64.3% of its workers drive to work alone. Being close to Concord means competing with the whole metro; the local advantage is being close by. Make it obvious you are in Martinez and name the streets and subdivisions you serve; that is your advantage over the metro.

Remote work is common in Martinez: 22.3% of employed residents work from home. Home workers can meet a contractor at 2 p.m., and they expect quick answers in writing. Daytime appointments, clear prices and an email that gets answered suit this audience; say how you schedule work.

Interstate 680 runs through Martinez, putting the city on one of the main travel and freight routes of California. Highway traffic also brings freight: trucking, repair, towing and truck services serve people who will never live in Martinez. One screen with services, hours and location is all a driver has time for. Get those few things right and the rest of the website can stay simple.

Mapping the area around Martinez

Within a short drive of Martinez you find Pleasant Hill (3.7 miles, pop. 34,017), Benicia (5.6 miles, pop. 26,401), Concord (6.4 miles, pop. 123,261), Lafayette (7.4 miles, pop. 25,313) and Walnut Creek (7.7 miles, pop. 70,012). Rosie the Riveter World War II Home Front National Historical Park lies within 15 miles of Martinez. Martinez covers 12.6 square miles of land and 1.0 square miles of water, about 2,915 residents per square mile. There are 42 incorporated cities and towns within 25 miles of Martinez. The nearest airport with an IATA code is Buchanan Field Airport (CCR), 3.2 miles east. A service area page that lists the towns you cover, from Martinez to Concord and Benicia, answers the first question many customers have: do you come to me?

A web designer’s view of Martinez’s businesses

Martinez shares ZIP code 94553 with the surrounding area, where 1,141 employer businesses were counted in 2023. Among them:

  • Remodeling contractors (52): before-and-after photos, the areas you serve and how estimates work.
  • Child care centers (19): the program, licensing information, the staff and a contact form for parents.
  • Residential property managers (13): the services for owners, the areas you manage and a contact form for owners and tenants.
  • Dental offices (18): the team, the treatments in plain words and a form that sends appointment requests to your email.
  • Quick-service restaurants (41): the menu with prices, hours and the closest cross streets.
  • Engineering firms (12): services by discipline and a contact form for proposals.

In Contra Costa County, the Census counted 25,932 businesses with employees and 102,001 without a payroll in 2023; the second group is where a simple, affordable website changes the most. 521 schools and training providers operate in Contra Costa County, 1.4 times what the national mix would predict. In that line of work, students and parents compare programs and costs; the website should give customers programs, schedules, tuition or fees and how to enroll. Nursing and residential care facilities are also overrepresented (430, 1.5 times the national share). The jobs Martinez residents hold are mostly in education, health care and social assistance (24.4%) and professional, management and administrative services (16.2%).

Martinez: the numbers behind the market

36,849People (2025 estimate)Census Bureau estimate
−0.9%Growth since 2020California: −0.5%
$127,355Median income per householdCalifornia: $99,122
42.6Half the residents are older thanCalifornia: 37.9
95.9%Households with a broadband planCalifornia: 93.5%
1,141Employer establishments, local ZIPsZIP Code Business Patterns 2023

Homeowners make up 70.8% of Martinez’s 14,723 households. Martinez’s median household income, $127,355, runs about 28% ahead of the state ($99,122). Half the residents are older than 42.6 (the California median age is 37.9). Housing costs: a median home value of $859,800 and a median rent of $2,353 a month, against $734,700 and $2,036 in California.

The customers behind the numbers in Martinez

70.8% of households own their home, above California’s 55.9%. Owners spend on repairs, upgrades and yard work, year after year. Government jobs account for 21.4% of employed residents. Stable government payrolls support steady local spending on services.

70.2% of the people in Martinez were born in California, against 56.5% statewide. When a neighbor recommends you, the website is where they confirm it.

With broadband in 95.9% of homes, Martinez is a connected market. Martinez customers check a business online before they call or drive over.

Martinez’s population, year by year

The population has barely moved since 2020: 37,171 then, 36,849 in 2025. Statewide, the change was −0.5%. A steady city rewards the business people can find and trust quickly.

Climate normals for Martinez

Martinez weather, in normals: July highs around 88°F, December lows around 35°F, measured at Martinez Wtp, 1 miles away (1991-2020). Precipitation totals about 19 inches a year, with January the wettest month. About 47 days a year hit 90°F or more. Mild weather keeps outdoor work going most of the year: patios, yards and outdoor events stay busy for months. Give seasonal work its own page, so the right page is there when the weather turns.

Hiring a web designer for your Martinez business, without the meetings

Aria has built websites since 2008 and is based in Curitiba, Brazil. There are no visits or meetings in Martinez: you send your material by email, and you approve the website on a temporary link.

  1. Fill in the sign-up form (about 5 minutes) and send your logo, photos and texts by email.
  2. Within 5 business days you get a temporary link with the whole website, built on a proven template with your brand.
  3. Approve it: the first monthly fee is issued and your domain starts showing the new site.

After it goes live, hosting, SSL, daily backups and security updates stay with Aria, and content changes by email are included.

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

California rules to know before your website goes live

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

  • If you send marketing email from your new business address, the CAN-SPAM rules (16 CFR Part 316) apply, including an easy way for people to opt out. 16 CFR Part 316
  • California’s statewide sales and use tax rate is 7.25%, and most areas add district taxes of roughly 0.10% to 2.00% on top of it. California Department of Tax and Fee Administration (CDTFA)
  • Cities and counties issue the local business license or business tax certificate; the state’s CalGOLD tool lists the permits a given business needs at a given address. In Martinez, that means asking Contra Costa County and the City of Martinez. Official source

General information, not legal advice: confirm the details with the agency that handles each item.

Your questions, answered for Martinez

Can my website list the towns around Martinez that I serve?

Yes. Tell us by email which towns you cover, Benicia and Concord included, and they go on the website’s service area page.

What if I need to change prices later?

Yes. Email the new list and it goes on the website; content changes are included.

What do I need to send?

No. Photos of your real work or place, taken with a good phone, usually say more than stock images; send them by email with your logo and service descriptions.

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 Martinez business

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); 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 USC00045378).
  • 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 Q506439), retrieved on October 30, 2026; distances are straight-line.
  • County seats: USGS National Atlas. State rules: the official California sources linked above, checked on October 30, 2026.