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Flooding in Littleton, CO: the figures

For Littleton, CO: the facts behind the questions callers ask most, in plain words.

Weather records near Littleton's ZIP codes show about 150 nights a year at or below freezing.

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Technical drawing of flood damage restoration: flooded basement cleanup, storm water cleanup and crawl space water removal.
Flood Damage Restoration covers flooded basement cleanup, storm water cleanup and crawl space water removal.

What happens when you call

  1. Call (833) 728-2327

    Tell the person who answers what got wet and where the water came from. Calls are answered 24/7.

  2. Stop the source

    You get help shutting off the water or the power to a wet room while the crew is on the way.

  3. Inspection and written estimate

    Moisture readings, photos and a written estimate come before any work begins.

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A guide for water damage restoration in Littleton and the towns around it.

The weather station nearest Littleton's ZIP codes records about 59 nights a year at 20 degrees or below, against 69 across Arapahoe County.

What the flood figures say for Littleton

Littleton's flood numbers are low, and winter causes more of its water damage than storms do. FEMA flood insurance records show 0.2 claims per 1,000 homes in Arapahoe County from 2016 to 2025. That matches the rate for Colorado as a whole. Arapahoe County's average building payment on those claims was $6,966, against $17,819 statewide. Just 0.3% of county homes carry federal flood insurance, compared with 0.6% across the state.

FEMA's National Risk Index puts yearly inland flood loss at $53 per $100,000 of building value. The county figure is 51 and the state's is 80. Heavy rain is rare, at 3 days a year with an inch or more in NOAA's climate normals. Arapahoe County has had 2 major disaster declarations for floods and storms since 2000. Storm reports logged flash flooding or flooding on 6 days between 2016 and 2025. When outside water does reach a home here, it tends to come from a summer downpour or snowmelt against a foundation.

Water that enters from outside is Category 3, since it carries soil and can carry sewage. A standard homeowners policy usually excludes it, and only flood insurance covers it. Read your own policy before you need flood damage restoration. A pipe that splits on one of the 150 nights at or below 32 degrees is a different loss. It is treated as sudden water from inside the house.

Flood and weather figures for Littleton

The city of Littleton counts about 45,092 residents, by the Census; the figures below are its own.

In Littleton, 47% of homes were built before 1980, compared with 41% across Colorado.

36% of homes in Littleton sit in larger multi-unit buildings, compared with 22% across Colorado.

Weather records near Littleton's ZIP codes show about 44 inches of snow in a typical year.

  • 21,506 Housing units
  • 150 Nights a year at or below 32 degreesArapahoe County: 165 Littleton150Arapahoe165CO164
  • 45,092 Residents
  • 59 Nights a year at or below 20 degreesArapahoe County: 69 Littleton59Arapahoe69CO71
  • 47% Homes built before 1980Arapahoe County: 39% Littleton47%Arapahoe39%CO41%
  • 36% Homes in buildings with 5 or more unitsArapahoe County: 29% Littleton36%Arapahoe29%CO22%
  • 44 Average snowfall a year, in inchesArapahoe County: 50 Littleton44Arapahoe50CO53
  • 39% Homes that are rentedArapahoe County: 35% Littleton39%Arapahoe35%CO34%
  • 6% Homes built before 1950Arapahoe County: 3% Littleton6%Arapahoe3%CO9%

Sources: U.S. Census Bureau, American Community Survey 2019-2023 5-year estimates; FEMA OpenFEMA, FIMA NFIP Redacted Claims v3, claims from 2016 to 2025 (not endorsed by FEMA); FEMA OpenFEMA, NFIP Residential Penetration Rates v1 (not endorsed by FEMA); FEMA National Risk Index v1.20, December 2025 (not endorsed by FEMA); NOAA NCEI, U.S. Climate Normals 1991-2020, nearest weather station; FEMA OpenFEMA, Disaster Declarations Summaries v2 (not endorsed by FEMA); NOAA NCEI Storm Events Database, 2016 to 2025.

Getting ready in Littleton

Snow decides where much of Littleton's outside water goes. NOAA climate normals put snowfall at 44 inches a year. Melt that pools against a foundation finds the same cracks a summer storm does. Clear each downspout before spring and extend it well away from the wall. Fill low spots so the soil slopes away from the house. With 47% of homes here built before 1980, older foundations give water more cracks to find.

If you have a basement, pour a bucket of water into the sump pit to test the pump. Add a battery backup for storms that cut the power. Clear snow and leaves from window wells and fit covers, because a full well can push water through the frame. Keep papers, photos and electronics on shelves rather than the basement floor. Look up your address on the FEMA flood map as well. Only 0.3% of Arapahoe County homes carry federal flood insurance. FEMA notes a 30-day waiting period before a new policy takes effect, so buy early if you want one.

When water gets in anyway, switch off power to the basement from a dry spot, photograph the water line and call. Storm water is Category 3, so the restoration crew usually pulls soaked carpet pad instead of drying it. Water mitigation begins with pumping and moisture readings in the slab and walls. 911 Water Damage Fix answers 24/7 for homes across the Littleton area.

Records to keep before a flood

Get ready in Littleton before the water does. Check your address on FEMA's flood maps, record a short video of every room, and keep policy numbers and the location of the main shutoff and breaker panel on paper. Store important papers above the basement floor. When water comes in, take photos of the water line before anything is moved; those pictures matter for the cleanup plan and for any claim. Laminate and hardwood under floodwater often need subfloor water damage repair once drying ends.

What Littleton callers ask about floods

What does a FEMA flood risk rating mean for my Littleton home?

FEMA's National Risk Index rates counties and census tracts for hazards such as riverine and coastal flooding, from very low to very high, using expected losses and community factors. It describes the area, not one house: a low lot or a basement can flood in a lower-rated area. Check your own FEMA flood zone too.

How do I keep storm water out of a Littleton basement?

Most basement water from storms comes from runoff at the foundation. Point downspouts away from the house, keep the yard sloping away, test the sump pump and its backup, and seal cracks and window wells.

Is flood cleanup different from other water damage?

Yes. Outside floodwater is Category 3 under the IICRC S500 standard, so carpet, pad, insulation and drywall below the water line are removed rather than dried, and hard surfaces are disinfected. Sewage and chemicals in floodwater are why the crew wears protective gear.

What should I do after floodwater gets into my Littleton home?

Keep out of the water until the electricity to the area is off. Floodwater counts as contaminated, so wear boots and gloves if you must go in. Photograph the water line, then call for extraction and drying; soaked porous materials below the line are usually removed.

Where can I check the flood zone for a Littleton address?

On the FEMA Flood Map Service Center at msc.fema.gov: type the address to see its flood zone and the map's date. FEMA's National Risk Index adds a county and ZIP view of expected flood losses. A low-risk zone is not a no-risk zone; water from heavy rain still reaches basements outside mapped flood areas.

Other guides for Littleton

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