Income Limits for Yellowstone County, MT. HUD sets Income Limits for each area based on the median family income in that area. Each Public Housing Agency PHA will use the Income Limit set for the jurisdiction that the PHA covers. Therefore, a family be eligible for one PHA but not another. The number of people in a household determines the Income Limit that is set for determining the family s eligibility for the program that they are applying for. Below are the Income Limits for Yellowstone County, MT: D4AYJ Median Income. $66, 200. Beartooth Homes apartments is an affordable rental housing community located in Billings, MT. Beartooth Homes apartments is an affordable housing community with 1 Beds apartments units. Income restrictions apply, please contact Beartooth Homes apartments for rates, availability and more information or compare to other apartments in Billings from the results below.