Income Limits by County

FY2027 Small Area FMR · Lewisville, ID

ZIP 83431 Fair Market Rent & Payment Standards

HUD's FY2027 Small Area Fair Market Rent for a two-bedroom home in ZIP code 83431 (Lewisville, ID) is $1,180 a month, unchanged from FY2026. That is 7% below the Idaho Falls, ID area-wide FMR of $1,274.

2-bedroom SAFMR$1,180per month ■ 0.0%
Area-wide 2 BR FMR$1,274Idaho Falls, ID
Rank in the area20thof 22 ZIP codes

Payment standard range, 2 bedrooms

90% of SAFMR$1,062
2 BR Small Area FMR$1,180
110% of SAFMR$1,298

Housing agencies may set voucher payment standards anywhere from 90% to 110% of the FMR without asking HUD.

FY2027 FY2026

Where 83431 sits in the Idaho Falls, ID area

$1,180$1,840median $1,290

Of the 22 ZIP codes HUD lists for the area, 83431 has the 20th highest two-bedroom Small Area FMR. Idaho Falls, ID is not on HUD's list of mandatory Small Area FMR areas, so voucher payment standards here are normally based on the area-wide FMR of $1,274 for two bedrooms; an agency that opts in to Small Area FMRs would use $1,180 for this ZIP code instead.

All unit sizes

Monthly gross rent including utilities
UnitFY2027 SAFMRPayment standard rangeArea-wide FMRFY2026 SAFMR
Studio$940$846 – $1,034$1,013$940
1 bedroom$990$891 – $1,089$1,064$980
2 bedrooms$1,180$1,062 – $1,298$1,274$1,180
3 bedrooms$1,640$1,476 – $1,804$1,764$1,660
4 bedrooms$1,980$1,782 – $2,178$2,129$1,990

A household renting a two-bedroom home at the Small Area FMR of $1,180 needs about $47,200 a year to keep housing costs at 30% of income. The area median family income is $101,100 and the 80% low-income limit for four people is $80,900. ZIP code 83431 lies mainly in Jefferson County. See the Idaho Falls, ID metro page for the full income limits table and the household check.

Nearby ZIP codes

ZIPPlaceDistance2 BR SAFMR
83434Menan4.6 mi$1,330
83442Rigby7.1 mi$1,380
83454Ucon7.8 mi$1,290
83427Iona12.4 mi$1,540
83401Idaho Falls12.7 mi$1,290
83402Idaho Falls13.4 mi$1,180

Questions

What is the Fair Market Rent for ZIP code 83431?

HUD's FY2027 Small Area Fair Market Rents for 83431 are $940 (studio), $990 (1 BR), $1,180 (2 BR), $1,640 (3 BR) and $1,980 (4 BR) a month.

What is the Section 8 payment standard in 83431?

Housing agencies set payment standards between 90% and 110% of the applicable FMR without HUD approval. For a two-bedroom unit in 83431 that range is $1,062 to $1,298 if the agency uses Small Area FMRs. Ask your housing agency for its actual payment standard.

Which income limits apply in 83431?

The FY2026 income limits of the Idaho Falls, ID area apply: median family income $101,100, low-income (80%) limit $80,900 for a family of four.