Cell Towers & EMF Exposure in 94109 (San Francisco, CA)

EMF Score
79
High
RF Score
76
Cell Towers & Wireless
ELF Score
23
Power Lines & Substations
0 Lower is better 100

How 94109 Compares

94109
79
CA avg
59
US avg
56

Check Your Address in 94109

EMF varies block by block. Enter your address for a precise score.

About EMF & Cell Towers Near 94109

2011
Cell Towers
311
5G Towers
14
Transmission Lines
7
Substations
1689.9/mi²
Towers/mi²

Check Your Address Near 94109

We're tracking 2802 cell towers, 14 transmission lines, and 7 substations near 94109. Search your address to see exactly what's nearby — and how close it is.

  • LTE
    4G LTE towers for mobile data
  • NR
    5G New Radio towers
  • High-voltage transmission lines
  • Electrical substations
Expand Map

Other Zip Codes in California

Lowest EMF exposure zip codes in California. Lower score = less exposure.

95123
San Jose, CA · 301 towers
64
Elevated
90024
Los Angeles, CA · 306 towers
66
Elevated
91335
Reseda, CA · 189 towers
67
Elevated
95124
San Jose, CA · 312 towers
68
Elevated
90046
Los Angeles, CA · 484 towers
69
Elevated
View all California locations

Understanding EMF, RF & ELF

What the scores mean and how they're measured near 94109

EMF

Electromagnetic fields from cell towers and power lines. 94109's combined score: 79/100.

Learn more
RF

Radio frequency from wireless infrastructure. 94109 has 2011 cell towers (311 are 5G) → RF score: 76.

ELF

Extremely low frequency from power grid. 94109 has 14 transmission lines and 7 substations → ELF score: 23.

Reduce EMF Exposure Near 94109

Free Changes Today

  • Move WiFi router away from bedrooms
  • Use airplane mode while sleeping
  • Choose bedrooms farthest from nearby towers

For Homes Near Infrastructure

  • RF shielding window film on tower-facing sides
  • EMF shielding paint for walls facing infrastructure
  • Shielded bed canopy for sleeping areas

Your specific location matters more than the zip code average.

Search your address to see exactly which towers and power lines are nearby.

Check Your Address

Want to verify with your own readings?

An EMF meter lets you measure exact levels room by room in your home.

Best EMF Meters
EMF scores near 94109 range from 35 to 100. The zip code score of 79 represents the average across sampled locations.

Cell Tower & EMF FAQ for 94109

How many cell towers are near 94109?
There are 2011 registered cell towers near 94109, of which 311 are 5G. That's a density of 1689.9/mi².
What is the EMF score for 94109?
94109's overall EMF score is 79 out of 100 (High). This breaks down into an RF score of 76 (cell towers & wireless) and an ELF score of 23 (power grid). Scores range from 35 to 100 across the area, so your specific location matters.
Is 5G available in 94109?
Yes, 94109 has 311 active 5G towers. 5G uses higher-frequency RF signals and typically requires more antennas placed closer together, which can increase localized RF exposure.
How does 94109 compare to other areas in California?
We're still calculating rankings for zip codes in California.
Are there power lines near 94109?
94109 has 14 high-voltage transmission lines and 7 substations in the area. These contribute to ELF (extremely low frequency) exposure, which is measured separately from RF (cell tower) exposure. The ELF score for 94109 is 23 out of 100. Use the map above to see exactly where power grid infrastructure is located.