Groundwater Temperature Map

How to use the interactive groundwater temperature map

1. Click on a State to zoom-in.

2. Click on a City to open a pop-up box detailing its average groundwater temperature.

3. Click on an area without a City to open a pop-up box detailing the average State groundwater temperature.

4. Click the arrow that is located at the top left corner of the map to zoom-out.


State Capital State Capital

City City

Interactive US City Groundwater Temperature Map

Groundwater temperature is important to know when deciding which tankless water heater is right for you. It will also give you a general idea of how much energy your water heater will use to heat the water to a certain temperature.


What is the Temperature of the Groundwater Where you Live?

Please use our interactive map to locate the groundwater temperatures where you live. You can simply input your zip code in the search box and it will automatically show you the closest groundwater temperature we have for your location. You can also find the groundwater temperature by selecting your state in the list below.


Alabama - AL

Alaska - AK

Arizona - AZ

Arkansas - AR

California - CA

Colorado - CO

Connecticut - CT

Delaware - DE

Florida - FL

Georgia - GA

Hawaii - HI

Idaho - ID

Illinois - IL

Indiana - IN

Iowa - IA

Kansas - KS

Kentucky - KY

Louisiana - LA

Maine - ME

Maryland - MD

Massachusetts - MA

Michigan - MI

Minnesota - MN

Mississippi - MS

Missouri - MO

Montana - MT

Nebraska - NE

Nevada - NV

New Hampshire - NH

New Jersey - NJ

New Mexico - NM

New York - NY

North Carolina - NC

North Dakota - ND

Ohio - OH

Oklahoma - OK

Oregon - OR

Pennsylvania - PA

Rhode Island - RI

South Carolina - SC

South Dakota - SD

Tennessee - TN

Texas - TX

Utah - UT

Vermont - VT

Virginia - VA

Washington - WA

West Virginia - WV

Wisconsin - WI

Wyoming - WY


Average Temperature Temperature Zone Recommended Tankless Water Heater Links
40°F or less               Tankless Water Heater Recommendation
41-50°F                Tankless Water Heater Recommendation
51-60°F                Tankless Water Heater Recommendation
61-70°F               Tankless Water Heater Recommendation
71 °F or more               Tankless Water Heater Recommendation