Household income — Sebastian, Florida

The $50,000 to $74,999 bracket is the largest in Sebastian, holding 20.9 percent of the city's 11,586 households in ACS 2020-2024, against 17.3 percent in Indian River County and 16.8 percent statewide.

Sebastian's distribution bulges in the middle. Adding the three brackets from $35,000 to $99,999 in the Sebastian S1901 table gives 49.0 percent of households (13.7 plus 20.9 plus 14.4), compared with 42.9 percent in the Indian River County table and 41.0 percent in the Florida table. The top is thinner: households at $100,000 or more add to 29.2 percent in Sebastian (15.3 plus 8.6 plus 5.3), against 35.3 percent countywide and 36.6 percent statewide. The bottom is close to the comparison areas, with 15.3 percent of Sebastian households under $25,000 (4.9 plus 1.8 plus 8.6), against 14.7 percent for the county and 15.0 percent for Florida.

Sebastian has relatively few very high earners: 5.3 percent of households reported $200,000 or more in ACS 2020-2024, so the mean of $86,184 sits only about 24 percent above the median of $69,409.

A mean is pulled up by the largest incomes, a median is not, so the gap between them is a rough gauge of how far the top stretches. In Sebastian the mean is 1.24 times the median (86,184 divided by 69,409). In Indian River County, where 11.5 percent of households take in $200,000 or more, the mean of $108,404 is 1.48 times the $73,491 median, and in Florida the ratio is 1.42. The top bracket lifts the county average in a way that it does not lift the Sebastian average.

The Census Bureau's Gini index of income inequality, which the Census Bureau describes as ranging from 0, perfect equality, to 1, perfect inequality, points the same way. The Gini index for Sebastian city is 0.4240, with a margin of error of 0.0340, against 0.4983 for Indian River County and 0.4851 for Florida. Even at the top of its error range, 0.458, Sebastian stays below the lowest plausible county value of 0.486, so incomes in Sebastian are measurably more even than in the county as a whole.

Sebastian's 7,170 family households had a median income of $83,558 in ACS 2020-2024, a little more than twice the $39,893 median of the city's 4,416 nonfamily households.

Married couples lead. The 5,790 married-couple families in the Sebastian S1901 table have a median of $86,655, below the county married-couple median of $101,506 and the Florida figure of $106,034. Only 9.1 percent of Sebastian married couples report $200,000 or more, about half the 18.0 percent share in both the county and the state, while 23.4 percent fall in the $50,000 to $74,999 band. Family households overall have a mean of $101,766.

Nonfamily households, which in Sebastian number 4,416, or 38.1 percent of all households (4,416 divided by 11,586), sit lower. Their largest single bracket is $15,000 to $24,999 at 18.5 percent, and just 0.7 percent of them report $200,000 or more. Their mean of $58,461 compares with $71,568 for nonfamily households across Indian River County.

Sebastian households headed by someone 45 to 64 have the highest median income, $84,843 in ACS 2020-2024, while those headed by someone 65 or older have the lowest published median, $58,241.

The B19049 table for Sebastian city does not publish a median for Sebastian householders under 25. The 25 to 44 figure carries a margin of $17,391, wide enough that it cannot be ranked against the county's $76,250. The senior figure is firmer: Sebastian's range for householders 65 and over runs from $53,315 to $63,167, entirely below the range for the Indian River County median of $66,445 (margin $2,702). Older Sebastian households therefore have measurably lower incomes than older households countywide, while they sit close to the statewide 65-and-over median of $57,397.

Retirement income reaches 4,772 of Sebastian's 11,586 households, or 41.2 percent, in ACS 2020-2024, well above the Florida share of 25.7 percent and slightly above Indian River County's 39.7 percent.

The shares are counts divided by households: 4,772 divided by 11,586 gives 41.2 percent for retirement income in the Sebastian B19059 table, and 6,224 divided by 11,586 gives 53.7 percent for Social Security in the Sebastian B19055 table. The county figures come from the county retirement table and the county Social Security table, and the state figures from the Florida retirement table and the Florida Social Security table. More than half of Sebastian households draw Social Security, a far larger share than the 36.6 percent statewide.

Sebastian's median household income rose from $53,707 in ACS 2015-2019 to $69,409 in ACS 2020-2024, a nominal gain of $15,702, but the two medians are stated in different years' dollars.

The 2019 variable list for table S1901 labels the older figures in 2019 inflation-adjusted dollars and the 2024 variable list labels the newer ones in 2024 dollars, so the $15,702 difference (69,409 minus 53,707) mixes real change with price increases, and the bracket shares shift partly for the same reason. The Census Bureau's rules for comparing ACS releases allow a comparison between these two 5-year sets because they share no years. Two bracket shifts against the 2015-2019 Sebastian table fall outside sampling error: households at $200,000 or more rose from 2.0 percent (range 1.1 to 2.9) to 5.3 percent (range 3.7 to 6.9), and households at $25,000 to $34,999 fell from 12.1 percent (range 9.3 to 14.9) to 6.4 percent (range 4.4 to 8.4), in each case ranges that do not touch. The household count grew by 1,804 over the same span (11,586 minus 9,782).

The Sebastian median of $69,409 has a margin of error of $6,139, so its plausible range of $63,270 to $75,548 includes both the Indian River County and Florida medians.

In other words, the gap of about $4,000 between Sebastian's median and the county's is not statistically firm, even though the bracket shape and the Gini index both show a real difference in how Sebastian incomes are spread. The ACS also fills in missing answers: the S1901 table reports that household income was allocated for 40.7 percent of Sebastian households, against 39.8 percent in Indian River County and 39.3 percent in Florida. The Census Bureau's item allocation definitions describe allocation as using statistical procedures to impute missing values. Poverty rates, pay by occupation and living costs for Sebastian are covered on their own pages in the Sebastian demographics and economy sections.

Last verified: October 12, 2026, against the Census Bureau ACS 2020-2024 tables S1901, B19049, B19055, B19059 and B19083 for Sebastian city, Indian River County and Florida, and the ACS 2015-2019 table S1901 for Sebastian city.