ZIP Code Tabulation Area · Illinois

ZIP Code 62305: Adams County, IL

ZIP Code 62305 (Adams County, Illinois) has an estimated 19,036 residents in 7,990 households. The median household income is $83,598, the median home value is $213,600 and the median gross rent is $926/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

19,036

Margin of error ±832

Median household income

$83,598

Margin of error ±$4,315

Median home value

$213,600

Margin of error ±$10,353

Median gross rent

$926/mo

Margin of error ±$67

Median age

46.4 yrs

Margin of error ±2.0 yrs

Mean travel time to work

15.1 min

Margin of error ±1.8 min

How ZIP 62305 compares with Illinois and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 6230546.4 yrsIllinois39.0 yrsUnited States38.9 yrs

Median household income

ZIP 62305$83,598Illinois$83,390United States$80,734

Per capita income

ZIP 62305$45,435Illinois$46,406United States$44,673

Poverty rate

ZIP 623057.2%Illinois11.8%United States12.5%

Unemployment rate

ZIP 623051.8%Illinois5.8%United States5.2%

Bachelor's degree or higher

ZIP 6230535.0%Illinois37.8%United States35.7%

Median home value

ZIP 62305$213,600Illinois$263,300United States$332,700

Median gross rent

ZIP 62305$926/moIllinois$1,274/moUnited States$1,413/mo

Owner-occupied homes

ZIP 6230584.7%Illinois67.1%United States65.2%

Mean travel time to work

ZIP 6230515.1 minIllinois27.8 minUnited States26.4 min

Worked from home

ZIP 623058.2%Illinois15.9%United States15.1%

All figures for ZIP 62305

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 62305 — ACS 2020–2024 5-year estimates
Measure	ZIP 62305	Margin of error	Illinois	United States
Total population	19,036	±832	12,694,798	334,922,499
Median age	46.4 yrs	±2.0 yrs	39.0 yrs	38.9 yrs
Households	7,990	±444	5,036,449	129,227,496
Median household income	$83,598	±$4,315	$83,390	$80,734
Per capita income	$45,435	±$3,062	$46,406	$44,673
Poverty rate	7.2%	±2.2 pts	11.8%	12.5%
Unemployment rate	1.8%	±1.2 pts	5.8%	5.2%
Bachelor's degree or higher	35.0%	±4.0 pts	37.8%	35.7%
Median home value	$213,600	±$10,353	$263,300	$332,700
Median gross rent	$926/mo	±$67	$1,274/mo	$1,413/mo
Owner-occupied homes	84.7%	±2.9 pts	67.1%	65.2%
Mean travel time to work	15.1 min	±1.8 min	27.8 min	26.4 min
Worked from home	8.2%	±2.8 pts	15.9%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 62305
Group	ZIP 62305	Illinois	United States
White alone, not Hispanic or Latino	94.6%	58.1%	57.4%
Black or African American alone, not Hispanic or Latino	1.2%	13.3%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.1%	0.1%	0.5%
Asian alone, not Hispanic or Latino	0.4%	5.9%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	0.1%	0.4%	0.6%
Two or more races, not Hispanic or Latino	2.4%	3.4%	4.3%
Hispanic or Latino (of any race)	1.3%	18.8%	19.3%

Where ZIP 62305 is

State: Illinois
Main county: Adams County
Largest overlapping place: Quincy (4% of the ZIP's land area)
Land area: 139.25 sq mi· about 137 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Adams County

62301 Quincy, IL 62320 Adams County, IL 62324 Adams County, IL 62325 Adams County, IL 62338 Adams County, IL 62339 Adams County, IL 62346 Adams County, IL 62347 Adams County, IL 62348 Adams County, IL 62349 Adams County, IL 62351 Adams County, IL 62359 Adams County, IL 62360 Adams County, IL 62365 Adams County, IL 62376 Adams County, IL

See every ZIP code in Illinois, or compare ZIP 62305 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.