PlainZIP

Colfax, IL · standard

ZIP Code 61728

McLean County, Illinois - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

1,410
8/sq mi
$97,159
Median income
$155,200
Median home value
27.5%
Bachelor's or higher

The verdict

Colfax pairs an upper-quartile household income with below-median home values, in a rural, homeowner-dominated area.

Top 21%
household income, US ZIPs
27th pct
home value, US ZIPs
8
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 61728 against every reporting US ZIP.

ZIP code 61728 is a sparsely populated ZIP (a standard USPS delivery area) in Colfax, McLean County, Illinois, home to just 1,410 residents across 169.9 square miles, a density of 8 people per square mile, in the Chicago time zone.

ZIP 61728 lands in the middle-income range, with a median household income of $97,159 (21% above the Illinois average), while per-capita income is $47,640. The poverty rate stands at 11.7% and the unemployment rate at 5.0%. The typical home here is valued at $155,200 (19% below the state average); renters pay a median of $875 monthly, and 77.2% of units are owner-occupied.

Educational attainment sits below the national norm: 27.5% of adults hold a bachelor's degree or higher, the median age is 36.6, and the average commute is -. Beyond these figures, 5 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing McLean County, letting you compare 61728 to its immediate surroundings rather than a national baseline alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 61728

Top 5 sectors by establishment count in Colfax, IL

Which industries have the most business establishments in ZIP 61728.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 61728, Colfax, IL · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

1,410

Population

169.9

Area (sq mi)

8

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 61728?

36.6

Median Age

47.2%

Male

52.8%

Female

0.7%

Foreign-Born

White 90.9%
African American 2.2%
Asian 0.2%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.5%
Hispanic or Latino 2.3%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$97,159

Median Household Income

+21% vs state

$47,640

Per Capita Income

11.7%

Poverty Rate

5.0%

Unemployment Rate

How ZIP 61728 ranks nationally

Colfax, IL household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$97,159 Top 21% higher than 79% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 64.5%
Bachelor's Degree or Higher 27.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

530

Total Housing Units

491

Occupied Units

39

Vacant Units

2.74

Avg Household Size

Occupancy Type

Owner 77.2%
Renter 22.8%

$155,200

Median Home Value

-19% vs state

$875

Median Rent

1953

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 31 business establishments in ZIP 61728, employing approximately 131 people with a combined annual payroll of $5,481,000.

31

Businesses

131

Employees

$5.5M

Annual Payroll

5

Industry Sectors

Industry Establishments % of Total
Construction 6 19.4%
Transportation and warehousing 5 16.1%
Other services (except public administration) 5 16.1%
Wholesale trade 4 12.9%
Finance and insurance 3 9.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 61728 vs 61720 →

ZIP 61728 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 61728 ranks the most populous - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 61728 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 61728 ranks the highest of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
61720 Anchor, IL 236 6.0 mi
61730 Cooksville, IL 379 6.1 mi
61731 Cropsey, IL 280 7.9 mi
61737 Ellsworth, IL 516 9.9 mi
61770 Saybrook, IL 1,108 10.4 mi

More ZIP Codes in McLean County

61761 standard
Normal, IL
Pop: 52,879
61701 standard
Bloomington, IL
Pop: 36,105
61704 standard
Bloomington, IL
Pop: 35,981
61705 standard
Bloomington, IL
Pop: 12,263
61745 standard
Heyworth, IL
Pop: 4,408
61752 standard
Le Roy, IL
Pop: 4,339

Related Areas

McLean County Colfax, IL Illinois

Frequently Asked Questions

What county is ZIP code 61728 in? ▼
ZIP code 61728 (Colfax) is located in McLean County, Illinois. McLean County contains multiple ZIP codes, see the full list at /counties/mclean-il.
What is the population of ZIP code 61728? ▼
ZIP code 61728 in Colfax, IL has a population of 1,410 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 61728? ▼
The median household income in ZIP 61728 is $97,159, which is 27% above the national average of $76,288.
What is the average home value in ZIP 61728? ▼
The median home value in ZIP 61728 is $155,200, which is 44% below the national average of $278,155.
What is the demographic makeup of ZIP 61728? ▼
The largest racial group in ZIP 61728 is White at 90.9%. Hispanic or Latino residents make up 2.3% of the population.
How many businesses are in ZIP code 61728? ▼
ZIP code 61728 has 31 business establishments employing approximately 131 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 61728? ▼
The top industries by establishment count in ZIP 61728 are: Construction (6), Transportation and warehousing (5), Other services (except public administration) (5). There are 5 industry sectors represented in total.
What is the education level in ZIP code 61728? ▼
In ZIP code 61728, 64.5% of residents aged 25+ have a high school diploma or higher, and 27.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 61728? ▼
In ZIP code 61728, approximately 77.2% of occupied housing units are owner-occupied and 22.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 61728? ▼
The poverty rate in ZIP code 61728 is 11.7% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.