Costs of Care. Some average costs for long-term care in the United States (in 2010) were: 1  $205 per day or $6,235 per month for a semi-private room in a nursing home.2  $229 per day or $6,965 per month for a private room in a nursing home.osts of Care. Some average costs for long-term care in the United States (in 2010) were: 1  $205 per day or $6,235 per month for a semi-private room in a nursing home.