ZIP code 30090 covers Marietta, Georgia in Cobb County. This area is served by 16 utility providers across 5 categories. The average residential electricity rate here is 11.7¢/kWh.
Estimated monthly utility costs
Cost data not available for this ZIP code.
Electric
Natural Gas
Water
Sewer
Internet
Nearby ZIP codes
Frequently asked questions
How do I set up utilities when moving to 30090?
Contact each provider separately before your move-in date. Start with electric (City of Marietta - (GA)) and gas (Atlanta Gas Light Co., (770) 455-0847) since those typically need a few business days to activate. Water and sewer are often handled with one call to your local utility. Set up internet last since it may require an installation visit.
Is electricity expensive in 30090?
No — electricity in Marietta, GA costs about 22% less than the national average. Compared to Georgia overall, rates here are about 16% lower. Based on 2023 NREL residential electricity rate data.
What internet providers are available in 30090?
Marietta, GA has strong broadband coverage. Providers include AT&T (Fiber / Fixed Wireless / DSL up to 1,000 Mbps), T-Mobile (Fixed Wireless up to 100 Mbps), Verizon (Fixed Wireless up to 300 Mbps), Xfinity (Cable up to 2,000 Mbps). Availability varies by street address. Based on FCC Broadband Data Collection filings.
What county is 30090 in?
ZIP code 30090 is in Cobb County, Georgia.
Disclaimer: Provider information is sourced from federal databases including HIFLD, EPA SDWIS, FCC Broadband Data, and EIA-861. Utility cost estimates are from the U.S. Census Bureau American Community Survey 5-Year Estimates. Electric rates are based on 2023 NREL data. Coverage areas are approximate and may not reflect recent changes. Please verify directly with your provider.
Data sources: U.S. Census Bureau, NREL, EIA-861, HIFLD, EPA, FCC. Last updated: April 2026.