The term specific gravity, symbolized sp gr, refers to the ratio of the density of a solid or liquid to the density of water at 4 degrees Celsius. The term can also refer to the ratio of the density of a gas to the density of dry air at standard temperature and pressure, although this specification is less often used.
Households in Columbia, MD have a median annual income of $100,849, which is more than the median annual income in the United States. Look at the chart to see how the median household income in Columbia, MD compares to that in it's parent locations. Dataset: Source:
Disclaimer. District Of Columbia is an area in District of Columbia with a population of 623,996. There are 294,664 male residents living in District Of Columbia and 329,332 female residents. The total number of households is 277,381 with 2.10 people per household on average.Total household expenditures in District Of Columbia are above the national average.here are 294,664 male residents living in District Of Columbia and 329,332 female residents. The total number of households is 277,381 with 2.10 people per household on average.