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US ZIP Code Profile

ZIP Code 77990
Tivoli, Texas

ZIP code 77990 is in Tivoli, located in Refugio County, Texas. Its 2020 Census population was 661. The estimated median adjusted gross income per tax return is $44,444.

2020 Population
661
Census ZCTA
County
Refugio
FIPS 48391
Median income (est.)
$44,444
IRS SOI 2022
Land Area
109.376 mi²
+ 33.647 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityTivoli, TX
CountyRefugio County (FIPS 48391)
StateTexas (FIPS 48)
Census Region / DivisionSouth Region · West South Central Division
Coordinates28.484888, -96.92489
Land / Water Area109.376 mi² land · 33.647 mi² water

02Income & Economics

Distribution of the 300 individual tax returns filed in 77990 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
26.7%
$25K–$50K
30.0%
$50K–$75K
16.7%
$75K–$100K
10.0%
$100K–$200K
16.7%
$200K+
0.0%
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 77990's IRS income metrics, 2020–2022.

Median income (2021→2022)
$44,444
▲ 3.7%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
300
▲ 7.1%
GET /zipc/v2/zipcodes/77990/soi?year=… $39K 2020 $43K 2021 $44K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 77990 ZCTA.

2000
861
 
2010
699
▼ -18.8%
2020
661
▼ -5.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number489030
City AliasesTivoli

06Frequently Asked Questions

What county is ZIP code 77990 in?

ZIP code 77990 is in Refugio County, Texas (county FIPS code 48391).

What city is ZIP code 77990?

The primary USPS city for 77990 is Tivoli, TX.

What is the population of ZIP code 77990?

The 2020 Census population of 77990 was 661 residents.

What is the median income in ZIP code 77990?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 77990 is about $44,444. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.