Grace, ID has a population of 893 and is the 15,852nd largest city in the United States. The population density is 933 per sq mi which is 4789% higher than the Idaho average and 930% higher than the national average. The median age in Grace is 40 which is approximately 11% higher than the Idaho average of 36. In Grace, 77% of the population over 15 years of age are married, 88% speak English and 12% speak Spanish. 58% of Grace residents were born in Idaho, 32% were born out of state, 1% were born outside of the United States and 9% were foreign born.