PlainZIP

Buffalo, IL · standard

ZIP Code 62515

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

961
6/sq mi
$62,222
Median income
$143,700
Median home value
32.9%
Bachelor's or higher

The verdict

Buffalo pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.

33th pct
household income, US ZIPs
24th pct
home value, US ZIPs
6
people per sq mi
80%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 62515 against every reporting US ZIP.

ZIP code 62515 is a sparsely populated ZIP (a standard USPS delivery area) in Buffalo, Sangamon County, Illinois, home to just 961 residents across 165.7 square miles, a density of 6 people per square mile, in the Chicago time zone.

ZIP 62515 reports a modest median household income of $62,222 (22% below the Illinois average), while per-capita income is $37,636. 19.0% of residents live below the poverty line, and the unemployment rate reads 3.5%. The typical home here is valued at $143,700 (25% below the state average); renters pay a median of $636 monthly, and 79.9% of units are owner-occupied.

A solid share of residents have a four-year degree: 32.9% of adults hold a bachelor's degree or higher, the median age is 56.8, and the average commute is -. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Sangamon County, so you can benchmark 62515 against its immediate geography rather than a national average 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 →

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 62515, Buffalo, 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

961

Population

165.7

Area (sq mi)

6

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 62515?

56.8

Median Age

47.2%

Male

52.8%

Female

3.5%

Foreign-Born

White 93.1%
African American 0.0%
Asian 0.1%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 6.8%
Hispanic or Latino 0.8%

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?

$62,222

Median Household Income

-22% vs state

$37,636

Per Capita Income

19.0%

Poverty Rate

3.5%

Unemployment Rate

How ZIP 62515 ranks nationally

Buffalo, IL household income vs. every US ZIP code

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

$62,222 33rd percentile higher than 33% 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%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $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 61.7%
Bachelor's Degree or Higher 32.9%

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

What does housing look like?

420

Total Housing Units

398

Occupied Units

22

Vacant Units

2.27

Avg Household Size

Occupancy Type

Owner 79.9%
Renter 20.1%

$143,700

Median Home Value

-25% vs state

$636

Median Rent

1970

Median Year Built

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

What businesses operate in this ZIP?

Census Bureau data shows 15 business establishments in ZIP 62515, employing approximately 73 people with a combined annual payroll of $3,327,000.

15

Businesses

73

Employees

$3.3M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Construction 4 26.7%

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 62515 vs 62519 →

ZIP 62515 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 62515 ranks #8 by population - useful context the national average alone can't give.

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

ZIP 62515 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 62515 ranks #8 of 9 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
62519 Cornland, IL 94 5.0 mi
62545 Mechanicsburg, IL 1,246 6.7 mi
62520 Dawson, IL 1,529 5.1 mi
62541 Lake Fork, IL 57 7.5 mi
62539 Illiopolis, IL 1,358 6.7 mi
62561 Riverton, IL 5,315 7.0 mi
62548 Mount Pulaski, IL 2,258 9.7 mi
62547 Mount Auburn, IL 804 9.2 mi
62693 Williamsville, IL 1,638 10.2 mi
62563 Rochester, IL 5,686 11.9 mi

More ZIP Codes in Sangamon County

62704 standard
Springfield, IL
Pop: 39,831
62702 standard
Springfield, IL
Pop: 37,281
62703 standard
Springfield, IL
Pop: 30,333
62711 standard
Springfield, IL
Pop: 15,347
62629 standard
Chatham, IL
Pop: 12,949
62712 standard
Springfield, IL
Pop: 10,302

Related Areas

Sangamon County Buffalo, IL Illinois

Frequently Asked Questions

What county is ZIP code 62515 in? ▼
ZIP code 62515 (Buffalo) is located in Sangamon County, Illinois. Sangamon County contains multiple ZIP codes, see the full list at /counties/sangamon-il.
What is the population of ZIP code 62515? ▼
ZIP code 62515 in Buffalo, IL has a population of 961 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 62515? ▼
The median household income in ZIP 62515 is $62,222, which is 18% below the national average of $76,288.
What is the average home value in ZIP 62515? ▼
The median home value in ZIP 62515 is $143,700, which is 48% below the national average of $278,155.
What is the demographic makeup of ZIP 62515? ▼
The largest racial group in ZIP 62515 is White at 93.1%. Hispanic or Latino residents make up 0.8% of the population.
How many businesses are in ZIP code 62515? ▼
ZIP code 62515 has 15 business establishments employing approximately 73 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 62515? ▼
In ZIP code 62515, 61.7% of residents aged 25+ have a high school diploma or higher, and 32.9% 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 62515? ▼
In ZIP code 62515, approximately 79.9% of occupied housing units are owner-occupied and 20.1% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 62515? ▼
The poverty rate in ZIP code 62515 is 19.0% 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.