Decorah, a city in Iowa, has a Low-Income Housing Tax Credit (LIHTC) funded affordable housing inventory comprising 23 total units, with 22 designated as low-income units. This represents approximately 0.56% of the city's estimated 4,101 housing units. The LIHTC program in Decorah has received $81,168 in project tax credits, distributed across approximately 3 projects, resulting in an average of $27,056 in federal funding per project. The average federal funding per unit is $3,529. Decorah's share of Iowa's total LIHTC funding is 0.04%.

The city's LIHTC-funded affordable housing history spans from 1987 to 1998, with Pyramid Properties being the first project built and Washington Court Apartments being the most recent. This indicates over a decade of affordable housing presence in Decorah. The 1980s and 1990s saw the most affordable housing projects completed. Of the 23 total units, 16 are one-bedroom apartments, primarily located in the Washington Court Apartments project, suggesting a focus on smaller household sizes in the city's LIHTC-funded affordable housing inventory.

Decorah's population has slightly decreased from 11,183 in 2015 to 10,704 in 2022. The median income has shown an overall increase from $61,315 in 2015 to $62,372 in 2022, despite some fluctuations. The racial distribution has remained relatively stable, with the white population consistently representing over 90% of the city's residents. The lack of new LIHTC projects in the last decade could be attributed to the relatively stable population and increasing median income, potentially indicating a reduced need for additional low-income housing.