| City: | Thayer, Illinois |
| County: | Sangamon County |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 8:20:51 AM |
| Population: | 516 [See All] |
| Area Codes: | 217 / 447 |
| Classification: | PO Box |
| Coordinates: | 39.5405, -89.7614 |
| Land Area: | 1.145 sq mi |
| Quick Link: |
Thayer is a small central Illinois town in Sangamon County with 516 residents and 244 households. Despite its PO Box classification, the community has limited street delivery through one city carrier route and one rural route serving 16 different streets. The post office maintains 248 PO Boxes for 244 households, a 1.02 adoption rate that shows nearly universal reliance on PO Box mail.
This is officially designated as a PO Box Only Zone, meaning there's no alternative mail delivery across the village. While some addresses receive carrier delivery, PO Boxes remain the primary option for most residents. The compact 0.70 square mile village sits about 20 miles south of Springfield.
Street names tell the story of a traditional Midwestern town. Presidential avenues (Cleveland, Washington, Roosevelt, Harrison, Polk, Van Buren) run north-south through the village, while east-west streets bear tree names like Ebony, Elm, Sycamore, Teak, and Hickory. Main Street anchors the downtown, with State Route 4 passing through the community.
Thayer's 516 residents lean older, with a median age of 40.7 years. It's a working-class community where median household income reaches $59,583 and median home values stand at $85,800. Three-quarters of occupied homes are owner-occupied (184 of 244 units). About 30% of workers commute from home, and transportation/warehousing employs a significant share of the workforce.
The village has just 4 business establishments employing 7 people locally, plus 11 business delivery points. Most residents commute to nearby Springfield for work. With 93% of the population identifying as white and only 14% Hispanic or Latino, Thayer maintains its traditional small-town character.
For most residents, mail to Thayer requires a PO Box address:
Recipient Name
PO Box [number]
Thayer, IL 62689Limited street delivery is available for some addresses within the village.
Presidential avenues (Cleveland, Washington, Roosevelt, Harrison, Polk, Van Buren) intersect with tree-named streets (Ebony, Elm, Sycamore, Teak, Hickory) in classic small-town grid.
ZIP Code 62689 has 516 residents and 244 households (average 2.11 persons per household). The median age is 40.7 years, slightly older than the state (38.8) and slightly older than the nation (38.8). The gender split is 50.2% male and 49.8% female, which is slightly higher than the state male share (49.0%). Largest groups are White (93.4%, much higher than the state average of 61.4% and well above the national average of 61.6%) and Hispanic or Latino (1.6%); Hispanic or Latino residents make up 1.6%, which is much lower than the national average (18.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 516Source: Census DHC |
| 2024 ACS Population Estimate: | 542Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 450.7 people per sq mile |
| Average Income: | $61,500Source: Census ACS |
| Households: | 244Source: Census DHC |
| Average House Value: | $92,300Source: Census ACS |
| Persons Per Household: | 2.11Source: Census DHC |
| Average Family Size: | 2.82Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 444 | 427 | 488 | 458 | 529 | 528 | 478 | 503 | 567 | 588 | 549 | 557 | 627 | 542 |
| Decennial Census | 518 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 516 | -- | -- | -- | -- |
Median Age: 40.7
Male Median Age: 39.8
Female Median Age: 45.5
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 15 | 11 | 14 | 20 | 12 | 16 | 19 | 24 | 19 | 11 | 12 | 19 | 20 | 15 | 8 | 10 | 9 | 5 |
| Female | 11 | 18 | 19 | 13 | 14 | 17 | 5 | 24 | 7 | 20 | 10 | 21 | 13 | 17 | 17 | 13 | 10 | 8 |
| Total | 26 | 29 | 33 | 33 | 26 | 33 | 24 | 48 | 26 | 31 | 22 | 40 | 33 | 32 | 25 | 23 | 19 | 13 |
| White: | 482 | 96.79% |
| Black: | 4 | 0.80% |
| Hispanic:* | 8 | 1.61% |
| Asian: | 0 | 0% |
| American Indian: | 2 | 0.40% |
| Hawaiian: | 0 | 0% |
| Other: | 2 | 0.40% |
| Total: | 498 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 259 | 50.19% | 39.8 years |
| Females: | 257 | 49.81% | 45.5 years |
| Total: | 516 | 100% | 40.7 years |
| Native, born in the United States: | 532 | 98.15% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 5 | 0.92% |
| Foreign born, not a U.S. citizen: | 5 | 1.85% |
| Total Population: | 542 | 100% |
| Total Native Population: | 532 | 98.15% |
| Total Foreign-born Population: | 10 | 1.85% |
In 2024, the Median household income is $61,500, which is much lower than the national median ($80,734), is up $7,802 (14.5%) since 2011 and above its 2019 pre-pandemic level by $10,250. Family households earn a median of $129,063 versus $33,438 for nonfamily households (a difference of $95,625). By gender, male median income is $44,318 and female is $65,729, which is considerably higher than the national female median ($55,274), with a current gap of $21,411 that has narrowed from 2011 to 2024. The labor-force participation rate is 72.6%, which is far greater than the national rate (63.5%). The unemployment rate is 3.9%, which is generally lower than the national rate (5.2%). The largest occupation group is Sales (29.5%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $53,698 | $54,779 | $55,074 | $53,125 | $51,429 | $51,042 | $47,031 | $53,333 | $51,250 | $48,594 | $51,042 | $56,563 | $59,583 | $61,500 |
| Median Family Income | $54,375 | $56,442 | $57,059 | $59,583 | $54,583 | $53,929 | $51,500 | $52,083 | $56,250 | $68,542 | $71,346 | $91,250 | $109,375 | $129,063 |
| Median NonFamily Income | $40,417 | $41,875 | $42,083 | $39,583 | $43,750 | $43,269 | $45,156 | $46,375 | $35,536 | $32,917 | $33,229 | $37,656 | $37,321 | $33,438 |
| Median Male Income | $50,313 | $50,500 | $48,125 | $46,250 | $45,833 | $47,361 | $59,167 | $54,531 | $47,321 | $35,000 | $35,341 | $38,269 | $43,750 | $44,318 |
| Median Female Income | $32,857 | $35,139 | $35,417 | $34,792 | $36,250 | $34,750 | $29,531 | $30,682 | $32,446 | $32,566 | $34,500 | $42,188 | $51,000 | $65,729 |
| Employed: | 288 | 68.74% |
| Unemployed: | 12 | 2.86% |
| Not In Labor Force: | 119 | 28.40% |
| Total: | 419 | 100% |
| Management, business, science, and arts: | 79 | 27.43% |
| Service: | 59 | 20.49% |
| Sales and Office: | 85 | 29.51% |
| Natural resources, construction, and maintenance: | 13 | 4.51% |
| Production, transportation, and material moving: | 52 | 18.06% |
| Total Civilian Employed Population: | 288 | 100% |
In 2024, the median home value is $92,300, which is well under the national median ($332,700), is up $12,800 (16.10%) since 2011 and above its 2019 pre-pandemic level by $23,700. The median gross rent is $923, which is well under the national median ($1,413), is up $185 (25.07%) since 2011 and above its 2019 pre-pandemic level by $213. Of occupied housing, owners make up 92.20% (57.71% with a mortgage, 42.29% free-and-clear) and renters 7.80% - making this ZIP Code under national rental averages. The vacancy rate is 11.02%, which is far higher than the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $79,500 | $82,300 | $81,400 | $79,700 | $75,600 | $77,400 | $72,600 | $69,300 | $68,600 | $73,400 | $74,400 | $84,700 | $85,800 | $92,300 |
| Less than $500: | 1 | 5.88% |
| $500 to $999: | 16 | 94.12% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 17 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $738 | $725 | $725 | $715 | $702 | $730 | $721 | $700 | $710 | $732 | $772 | $860 | $880 | $923 |
| Owner Occupied (with mortgage): | 116 | 53.21% |
| Owner Occupied (free and clear, no mortgage): | 85 | 38.99% |
| Renter Occupied: | 17 | 7.80% |
| Total Occupied Housing Units: | 218 | 100% |
| Occupied Housing Units: | 218 | 88.98% |
| Vacant Housing Units (not graphed): | 27 | 11.02% |
| Total Housing Units: | 245 | 100% |
| Single-Family Units: | 242 | 98.78% |
| Multi-Family Units: | 0 | 0.00% |
| Other Units: | 3 | 1.22% |
| Total Housing Units: | 245 | 100% |
In 2024, 14.10% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 91.00%, which is comparable to the national rate (89.60%). The uninsured rate is 3.20%, which is far lower than the national rate (8.40%). The share of people in poverty is 3.50%, which is far lower than the national rate (8.80%), up 0.70 percentage points since 2011 and below its 2019 pre-pandemic level by 10.80 percentage points. This points to rising hardship - a weaker consumer base, greater strain on public services, and job-market headwinds. Among residents ages 3+, the largest enrollment group is elementary (65.19%). College enrollment is 0.00%, which is far lower than the national rate (26.70%), indicating the community may be more oriented toward vocational/trade or direct-to-workforce opportunities.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 2 | 0.60% |
| 9th to 12th grade, no diploma: | 28 | 8.38% |
| High school graduate (includes equivalency): | 160 | 47.90% |
| Some college, no degree: | 71 | 21.26% |
| Associate's degree: | 26 | 7.78% |
| Bachelor's degree: | 41 | 12.28% |
| Graduate or professional degree: | 6 | 1.80% |
| Total: | 334 | 100% |
| High school or higher: | 304 | 91.02% |
| Bachelor's degree or higher: | 47 | 14.07% |
| Private Insurance: | 410 | 66.67% |
| Public Insurance: | 188 | 30.57% |
| No Insurance: | 17 | 2.76% |
| Total: | 615 | 100% |
| Has Health Insurance: | 598 | 97.24% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 0.8% | 2.5% | 2.9% | 6.3% | 11.9% | 13.3% | 15.5% | 15.6% | 12.3% | 3.8% | 4.1% | 0.9% | 1.5% | 3.5% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 8 | 5.93% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 88 | 65.19% |
| High school (grades 9-12): | 39 | 28.89% |
| College or graduate school: | 0 | 0.00% |
| Total: | 135 | 100% |
| Early Childhood: | 8 | 5.93% |
| K-12 (Primary & Secondary School): | 127 | 94.07% |
ZIP Code 62689 supports both business and residential activity. According to the Business Census (2024), there are 4 business establishments, employing about 13 people with an annual payroll of $550,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 261Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 4Source: CBP |
| 1st Quarter Payroll: | $64,000Source: CBP |
| Annual Payroll: | $550,000Source: CBP |
| # of Employees: | 13Source: CBP |
ZIP Code 62689 is located in Sangamon County, Illinois, within the Springfield, IL Metropolitan Statistical Area (CBSA 44100) and Illinois's 13rd Congressional District. This Metro area has a population of 210,170 people, about 0.25% of whom live in ZIP Code 62689. It covers 1.145 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Springfield, ILSource: Census |
| CBSA Number: | 44100Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 210,170Source: Census |
| MSA: | Springfield, IL MSASource: Census |
| Land Area: | 1.145 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 13Source: USPS |
| Congressional Land Area: | 5793.65 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 1774860Source: Census |
| Place Name: | Thayer village; IllinoisSource: Census |
We could not locate which school district 62689 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on March 1, 2026.