Why squirrels Thrive in Columbia
squirrels are remarkably adaptable. One-way exclusion doors are the standard humane removal method. In Columbia, where the humid continental climate provides 70% average humidity and temperatures ranging from 22°F in winter to 88°F in summer, these pests find the resources they need to establish and expand their populations.
The research on squirrels in U.S. homes, and what it means in Columbia
Most squirrel advice online repeats the same unsourced claims, so for Columbia homeowners the statements below are tied to specific surveys, studies and published cost guides, and each one says what it does and does not prove for a Columbia property. In the 2022 wildlife-perceptions survey by Puri and colleagues (1,006 residents of a southeastern U.S. metro area, published in People and Nature in 2024), 15.2% of respondents with squirrels or chipmunks nearby preferred a small decrease, an attitude measure and not an infestation finding. Homeowners who prefer not to trap can ask about a one-way exclusion door, which Fixr's January 2025 U.S. publisher estimate puts at $200 to $600, a range that is an estimate rather than a measured price and that excludes sealing the other openings. Columbia is not an outlier on this point: just 9.3% of residents who reported squirrels or chipmunks nearby wanted a large decrease in their numbers, according to Puri and colleagues' 2022 survey of 1,006 people in a southeastern U.S. metro area (published 2024), a neighborhood-attitude figure, not an infestation rate. Homeowners in Columbia ask about this often: some 8.4% of residents who reported squirrels or chipmunks nearby wanted a small increase in their numbers, according to Puri and colleagues' 2022 survey of 1,006 people in a southeastern U.S. metro area (published 2024); the question concerned neighborhood wildlife, not homes. Another data point for Columbia readers: in ConsumerAffairs' February 2024 survey of 2,000 U.S. respondents about home infestations, which mixed pest and mold questions and relied on self-reports, 17% said they had done nothing about their pest problems, a general consumer figure and not a per-pest statistic. None of these sources surveyed Columbia specifically, so read them as national and regional context; the local facts that matter most are the ones an inspector documents at your Columbia property, meaning where activity is, what is attracting it and how it is getting in.