Illinois · Census place 09447
Buffalo Grove, IL population, income and ZIP codes
Quick answer
The population of the city of Buffalo Grove, Illinois (Buffalo Grove, IL — Census place “Buffalo Grove village”) is 42,824 residents, ranking #35 of 1462 places in Illinois. Median household income is $129,820, the median home is worth $392,900 and median gross rent runs $2,042 a month. Looking for the Buffalo Grove Illinois ZIP code list? 1 ZIP codes serve Buffalo Grove, IL: 60089.
- Population
- 42,824Buffalo Grove village residents
- Median household income
- $129,820Past 12 months, inflation adjusted
- Median home value
- $392,900Owner-occupied units
- Median gross rent
- $2,042Rent plus utilities, monthly
- Median age
- 42.1 yrsAll residents
- Homeownership rate
- 81.5%Owner-occupied households
Buffalo Grove ZIP codes (Illinois)
Census ZCTAs whose delivery area overlaps Buffalo Grove.
The Buffalo Grove IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Buffalo Grove village
Housing cost measured against local earnings.
A household earning the Buffalo Grove village median would spend about 18.9% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 3.0× the median household income; nationally that ratio sits near 4.5×. Poverty affects 6.5% of residents and 81.5% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Buffalo Grove village, IL in context
How this area compares with national benchmarks.
Buffalo Grove village is a small city in Illinois, with 42,824 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #35 of 1,462 ranked by population — larger than 97% of them. The median age here is 42.1 years against 39.1 nationally, a slightly older profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.
Households in Buffalo Grove village earn a median of $129,820 a year, 65.3% above the national figure of $78,538 and 75% above the $74,244 median for the 698 Illinois cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 6.5% of residents here, below the 12.4% national rate.
The typical owner-occupied home in Buffalo Grove village is valued at $392,900, 29.5% above the national figure and 119% above the $179,100 peer median, while median gross rent runs $2,042 a month, 45.2% above the national figure, or roughly $24,504 across a full year. A household on the local median income would put about 18.9% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 3×, against roughly 3.9× nationally, so buying is easier here than in the average US market. 81.5% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.
All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.
Compare with nearby places
Places of similar size in Illinois.
- Moline city 42,235
- Lombard village 43,722
- Belleville city 41,722
- Elmhurst city 45,538
- Romeoville village 40,996
- Plainfield village 45,705
- Bartlett village 40,531
- Glenview village 47,682
Keep going
More Illinois coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Buffalo Grove village?
- Buffalo Grove village has 42,824 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #35 of 1,462 in Illinois.
- What is the median household income in Buffalo Grove village?
- Median household income in Buffalo Grove village is $129,820 a year, 65.3% above the national figure of $78,538.
- How much does it cost to rent or buy in Buffalo Grove village?
- Median gross rent is $2,042 a month and the median home value is $392,900, so rent absorbs about 18.9% of median household income.
- Is Buffalo Grove village affordable compared with the rest of the US?
- Homes cost about 3× the local median income here versus roughly 3.9× nationally, so Buffalo Grove village is more affordable to buy in than the typical US market, and rent takes 18.9% of median income against the 30% cost-burden line.
- How current is this Buffalo Grove village data?
- All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.